Source Lens library

Philosophy quotes worth following to the source.

Begin with a memorable line, inspect its catalog attribution, reflect on the claim, and continue into the thinker, work, school, or topic behind it.

150 published quote pagesEnglishSource-aware
“When something happens, the only thing in your power is your attitude toward it”
Epictetus Enchiridion
“The man who has anticipated the coming of troubles takes away their power when they arrive”
Seneca the Younger Letters from a Stoic
“To make the best of what is in our power, and take the rest as it occurs”
Epictetus Discourses, Book 4
“Do what you will. Even if you tear yourself apart, most people will continue doing the same things”
Marcus Aurelius Meditations, Book 8.4
“Only through suffering can we grasp the essence of life”
Arthur Schopenhauer Studies in Pessimism
“True happiness is to enjoy the present, without anxious dependence upon the future”
Seneca the Younger Letters from a Stoic
“We are mistaken when we look forward to death; the major portion of death has already passed. Whatever years be behind us are in death's hands”
Seneca the Younger On the Shortness of Life
“A man's as miserable as he thinks he is”
Seneca the Younger Letters from a Stoic
“The price of excellence is continuous practice”
Epictetus Discourses, Book 1
“Man's duty is to improve himself; to cultivate his mind; and, when he finds himself going astray, to bring the moral law to bear upon himself”
Immanuel Kant The Metaphysics of Morals
“Our cognitive faculty feels an infinitely higher satisfaction in the resolution of a problem than in its mere contemplation”
Immanuel Kant Critique of Pure Reason
“What cannot be doubted must be true”
René Descartes Meditations on First Philosophy
“The longer a man’s fame is to last, the later it will begin”
Arthur Schopenhauer Studies in Pessimism
“No one can lose either the past or the future - how could anyone be deprived of what he does not possess?”
Marcus Aurelius Meditations, Book 2.14
“Character is simply habit long continued”
Plato Laws
“Perfect numbers like perfect men are very rare”
René Descartes Rules for the Direction of the Mind
“Emotion, which is suffering, ceases to be suffering as soon as we form a clear and precise picture of it”
Baruch Spinoza Ethics, Part V
“Learn to distinguish what you can and cannot control”
Epictetus Enchiridion
“Our duties naturally emerge from our relationships”
Epictetus Discourses, Book 2
“The judge of all things should be neutral, and a wise person is a neutral judge”
Epictetus Discourses, Book 3
“Consider that before long you will be nobody and nowhere”
Marcus Aurelius Meditations, Book 12.21
“The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane”
Marcus Aurelius Meditations, Book 7.55
“Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination”
Plato Laws
“Self-conquest is the greatest of victories”
Plato Laws
“The superior man wishes to be slow in his speech and earnest in his conduct”
Confucius Analects 4:24
“The soul is dyed by the thoughts. Dye it, then, in a succession of thoughts that bring tranquility and joy”
Epictetus Discourses, Book 3
“Be cheerful also, and seek not external help nor the tranquility others give”
Marcus Aurelius Meditations, Book 7.15
“Education in music is most sovereign because more than anything else rhythm and harmony find their way to the inmost soul”
Plato Republic
“What is existence for but to be laughed at if men in their twenties have already attained the utmost?”
Søren Kierkegaard Concluding Unscientific Postscript
“A thinker erects an enormous building, a system, embracing the whole of existence, world history, etc., and if his personal life is considered, he himself lives in a shed”
Søren Kierkegaard Either/Or
“The more one has suffered, the better one understands”
Søren Kierkegaard The Concept of Anxiety
“To have faith is to lose your mind and win God”
Søren Kierkegaard Fear and Trembling
“What we call worldliness simply consists of such people who, if one may so express it, pawn themselves to the world”
Søren Kierkegaard The Sickness Unto Death
“The aim of education is to make the pupil like and dislike what he ought”
Aristotle Ethics
“The final cause is both first and last”
Aristotle Physics
“Happiness is a chimera that retreats as we approach”
Arthur Schopenhauer The World as Will and Representation
“He who exercises government by means of his virtue may be compared to the north polar star, which keeps its place and all the stars turn towards it”
Confucius Analects 2:1
“If the superior man lacks gravitas, then he will not inspire respect”
Confucius Analects 1:8
“No man ever threw away life while it was worth keeping”
David Hume Essays on Suicide and the Immortality of the Soul
“Reading and sauntering and lounging and dosing, which I call thinking, is my supreme happiness”
David Hume Letters of David Hume
“True philosophy embraces skeptical doubt”
David Hume An Enquiry Concerning Human Understanding
“It is our attitude toward events, not events themselves, which we can control”
Epictetus Enchiridion
“The past is gone, the future is not here, but the present is forever”
Epictetus Discourses, Book 2
“Who can attain to anything great if he does not feel in himself the force and will to inflict great pain?”
Friedrich Nietzsche The Gay Science
“There is no such thing as moral phenomena, but only a moral interpretation of phenomena”
Friedrich Nietzsche Beyond Good and Evil
“Care about what other people think and you will always be their prisoner”
Lao Tzu Tao Te Ching, Chapter 9
“The ruling power within, when it is in its natural state, is so related to outer circumstances”
Marcus Aurelius Meditations, Book 7.16
“Wonder is the feeling of the philosopher, and philosophy begins in wonder”
Plato Theaetetus
“In poverty and other misfortunes of life, true friends are a sure refuge”
Aristotle Nicomachean Ethics
“Wishing to be friends is quick work, but friendship is a slow ripening fruit”
Aristotle Nicomachean Ethics
“It is during our darkest moments that we must focus to see the light”
Aristotle Metaphysics
“Poetry is finer and more philosophical than history; for poetry expresses the universal, and history only the particular”
Aristotle Poetics
“The nature of the divine thought is not of possessing but of activity”
Aristotle Metaphysics
“Every man takes the limits of his own field of vision for the limits of the world”
Arthur Schopenhauer Studies in Pessimism
“We are like shipwrecked sailors clinging to a raft of illusion”
Arthur Schopenhauer The World as Will and Representation
“Learning without thought is labor lost; thought without learning is perilous”
Confucius Analects 2:15
“All the perceptions of the human mind resolve themselves into two distinct kinds, impressions and ideas”
David Hume A Treatise of Human Nature
“The identity which we ascribe to the mind of man is only a fictitious one”
David Hume A Treatise of Human Nature
“The beginning of philosophy is the recognition of the conflict between opinions”
Epictetus Discourses, Book 2
“Every achievement, every step forward in knowledge, follows from courage”
Friedrich Nietzsche The Gay Science
“Man is something that shall be overcome”
Friedrich Nietzsche Thus Spoke Zarathustra
“Our highest insights must—and should—sound like follies”
Friedrich Nietzsche Beyond Good and Evil
“What does your conscience say? You shall become the person you are”
Friedrich Nietzsche The Gay Science
“Man must develop his tendency towards the good”
Immanuel Kant Religion within the Boundaries of Mere Reason
“The higher the sun rises, the less shadow it casts”
Lao Tzu Tao Te Ching, Chapter 22
“The master does nothing yet he leaves nothing undone”
Lao Tzu Tao Te Ching, Chapter 38
“Begin each day by telling yourself: Today I shall be meeting with interference, ingratitude, insolence, disloyalty, ill-will, and selfishness”
Marcus Aurelius Meditations, Book 2.1
“The just man does not permit the several elements within him to interfere with one another”
Plato Republic
“The true pilot must pay attention to the year and seasons and sky and stars and winds”
Plato Republic
“A democracy exists whenever those who are free and poor are in sovereign control of the government”
Aristotle Politics
“Matter exists potentially, form actually”
Aristotle Metaphysics
“The wise man seeks contentment, not ecstasy”
Arthur Schopenhauer The Wisdom of Life
“Time is a condition of the will and representation”
Arthur Schopenhauer The World as Will and Representation
“The mind's power is defined by knowledge alone”
Baruch Spinoza Ethics, Part V
“The superior man acts before he speaks, and afterwards speaks according to his actions”
Confucius Analects 2:13
“I cannot believe in a God who wants to be praised all the time”
Friedrich Nietzsche Thus Spoke Zarathustra
“The most fundamental form of human stupidity is forgetting what we were trying to do in the first place”
Friedrich Nietzsche Human, All Too Human
“The ultimate destiny of the human race is moral perfection”
Immanuel Kant Idea for a Universal History
“To think for oneself means to seek the supreme touchstone of truth in oneself”
Immanuel Kant What is Orientation in Thinking?
“A journey of a thousand miles begins with a single step”
Lao Tzu Tao Te Ching, Chapter 64
“A terrace nine stories high begins with a pile of earth”
Lao Tzu Tao Te Ching, Chapter 64
“If you would have a thing shrink, you must first stretch it”
Lao Tzu Tao Te Ching, Chapter 36
“Adapt yourself to the things among which your lot has been cast”
Marcus Aurelius Meditations, Book 6.39
“Be not careless in deeds, nor confused in words, nor rambling in thought”
Marcus Aurelius Meditations, Book 8.51
“Nothing happens to any man that he is not formed by nature to bear”
Marcus Aurelius Meditations, Book 5.18
“No man undertakes a trade he has not learned, even the meanest; yet everyone thinks himself sufficiently qualified for the hardest of all trades, that of government”
Socrates Plato's Republic
“The more unintelligent a man is, the less mysterious existence seems to him”
Arthur Schopenhauer Parerga and Paralipomena
“Freedom is the recognition of necessity”
Baruch Spinoza Ethics, Part I
“The superior man is quiet and serene. The inferior man is always embroiled in some trouble”
Confucius Analects 7:36
“To see what is right and not do it is the worst cowardice”
Confucius Analects 2:24
“Imagination has unbounded liberty in combining ideas”
David Hume A Treatise of Human Nature
“What we fear most is not death, but suffering without meaning”
Friedrich Nietzsche The Will to Power
“Nature does not hurry, yet everything is accomplished”
Lao Tzu Tao Te Ching, Chapter 73
“The wise man views gain and loss the same way”
Lao Tzu Tao Te Ching, Chapter 13
“The firm, the enduring, the simple, and the modest are near to virtue”
Confucius Analects 13:27
“For peace to reign on Earth, humans must evolve into new beings who have learned to see the whole first”
Immanuel Kant Perpetual Peace
“The principle of autonomy is the sole principle of morals”
Immanuel Kant Groundwork of the Metaphysics of Morals
“Mathematics is a more powerful instrument of knowledge than any other that has been bequeathed to us by human agency”
René Descartes Rules for the Direction of the Mind
“An emotion which is a passion ceases to be a passion as soon as we form a clear and distinct idea of it”
Baruch Spinoza Ethics, Part V, Proposition III
“Interest is the first mover of the human mind”
David Hume History of England
“No action can be virtuous unless it proceeds from a virtuous motive”
David Hume An Enquiry Concerning the Principles of Morals
“The wise man achieves without action and teaches without words”
Lao Tzu Tao Te Ching, Chapter 43
“When I let go of what I am, I become what I might be”
Lao Tzu Tao Te Ching, Chapter 22
“I was afraid that by observing objects with my eyes and trying to comprehend them with each of my other senses I might blind my soul altogether”
Socrates Plato's Phaedo
“Most men are so thoroughly subjective that nothing really interests them but themselves”
Arthur Schopenhauer Parerga and Paralipomena
“The power of external causes infinitely surpasses human power”
Baruch Spinoza Ethics, Part IV
“Things which agree in nothing can neither be understood through one another”
Baruch Spinoza Ethics, Part I
“The superior man does not promote a man simply because of his words”
Confucius Analects 15:22
“Contentment is natural wealth, luxury is artificial poverty”
Socrates Xenophon's Memorabilia
“The good which a man desires for himself and loves, he will love more constantly if he sees that others love it also”
Baruch Spinoza Ethics, Part IV
“They must often change who would be constant in happiness or wisdom”
Confucius Analects 13:22
“The concept of duty contains in it that of a good will”
Immanuel Kant Groundwork of the Metaphysics of Morals
“The good will shines like a jewel for its own sake”
Immanuel Kant Groundwork of the Metaphysics of Morals
“Begin at once to live, and count each separate day as a separate life”
Seneca the Younger On the Shortness of Life
“Brave men rejoice in adversity, just as brave soldiers triumph in war”
Seneca the Younger On Providence
“Men will find that they can prepare with mutual aid much more easily what they need”
Baruch Spinoza Ethics, Part IV
“Things which are accidentally the causes of hope or fear are called good or evil omens”
Baruch Spinoza Ethics, Part III, Proposition L
“No testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous than the fact which it endeavors to establish”
David Hume An Enquiry Concerning Human Understanding
“Is life not a thousand times too short for us to bore ourselves?”
Friedrich Nietzsche Beyond Good and Evil
“Rhetoric is the art of enchanting the soul”
Plato Phaedrus
“The union of mind and body is best understood by not understanding it”
René Descartes Letter to Princess Elizabeth
“The imperative of understanding: that one must not merely understand the true but must also understand the false in the true”
Søren Kierkegaard Journals (1844)
“True insight comes from solitude and contemplation”
Arthur Schopenhauer Parerga and Paralipomena
“Look closely. The beautiful may be small”
Immanuel Kant Observations on the Feeling of the Beautiful and Sublime
“What we pray for is not so important as the fact that we do pray”
Søren Kierkegaard Journals (1847)
“Life in accordance with reason is best and pleasantest”
Aristotle Nicomachean Ethics
“A just knowledge of human nature is the only solid foundation for moral science”
David Hume An Enquiry Concerning the Principles of Morals
“The study of virtue has become a study of ideas, instead of a way of life”
Socrates Plato's Republic
“We should not, like sheep, follow the herd of creatures in front of us”
Seneca the Younger On the Happy Life
“If evil exists, it exists either in gods or in men”
Socrates Plato's Euthyphro
“Life is a mystery to be lived, not a problem to be solved”
Søren Kierkegaard Journals (1838)
“The truth is lived before it is understood”
Søren Kierkegaard Journals (1835)
“The part of life we really live is small”
Seneca the Younger On the Shortness of Life
“People understand me so poorly that they don't even understand my complaint about them not understanding me”
Søren Kierkegaard Journals (1849)
“To know what people really think, pay attention to what they do, rather than what they say”
René Descartes Discourse on the Method
“Knowledge is true opinion combined with definition or rational explanation”
Plato Theaetetus
“Love is born into every human being; it calls back the halves of our original nature together”
Plato Symposium
“All wars are fought for the sake of getting money”
Socrates Plato's Phaedrus
“He is richest who is content with the least”
Socrates Xenophon's Memorabilia
“All science is certain, evident knowledge. We reject all knowledge which is merely probable”
René Descartes Rules for the Direction of the Mind
“The poets are only the interpreters of the gods”
Socrates Plato's Ion
“Living well and beautifully and justly are all one thing”
Socrates Plato's Crito
“The fewer our wants the more we resemble the gods”
Socrates Xenophon's Memorabilia
“I desire to live in peace and to continue the life I have begun under the motto 'to live well you must live unseen'”
René Descartes Personal Correspondence
“The highest good is a mind that scorns the happenings of chance”
Seneca the Younger On the Happy Life
“I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand them”
Baruch Spinoza Tractatus Politicus, Chapter I, Section 4
“At last I will devote myself sincerely and without reservation to the general demolition of my opinions”
René Descartes Meditations on First Philosophy
“The spirit ought to be brought up for examination daily”
Seneca the Younger On Anger
“The greatest pleasure in life is doing what people say you cannot do”
René Descartes Personal Correspondence
“The conveniences of life are not to be secured through anger or impatience”
René Descartes Personal Correspondence

Carry the idea with you

Take the library with you.

Save quotes and move between thinkers, works, and schools in Philosophia.