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51. “To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge.” –  Isaac Asimov 52. “The Republic isn’t as much fun as The Symposium. It’s all long speeches, and nobody bursting in drunk to woo Socrates in the middle.” –  Jo Walton, Among Others 53. “We are not separated from spirit, we are in it.” –  Plotinus 54. “But what difference does it make who spoke the words? They were uttered for the world.” –  Seneca If you’re enjoying these quotes, you’ll love our collection of Seneca quotes that will help you in all facets of your life. 55. “It wasn’t easy looking dignified wearing a bed sheet and a purple cape.” –  Rick Riordan, The Son of Neptune 56. “Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.” –  Aristotle 57. “When health is absent, wisdom cannot reveal itself, art cannot manifest, ...

46. “No man should bring children into the world who is unwilling to persevere to the end in their nature and education.” –  Plato 47. “Do not trust all men, but trust men of worth; the former course is silly, the latter a mark of prudence.” –  Democritus 48. “Men who wish to know about the world must learn about it in its particular details.” –  Heraclitus 49. “The energy of the mind is the essence of life.” –  Aristotle 50. “People are like dirt. They can either nourish you and help you grow as a person or they can stunt your growth and make you wilt and die.” –  Plato

41. “Control thy passions lest they take vengence on thee.” –  Epictetus 42. “No one that encounters prosperity does not also encounter danger.” –  Heraclitus 43. “Misfortune shows those who are not really friends.” –  Aristotle 44. “Moral habits, induced by public practices, are far quicker in making their way into men’s private lives, than the failings and faults of individuals are in infecting the city at large.” –  Plutarch 45. “Skillful pilots gain their reputation from storms and tempest.” –  Epicurus

36. “I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is over self.” –  Aristotle 37. “Everything existing in the universe is the fruit of chance and necessity.” –  Democritus 38. “The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.” –  Aristotle 39. “If thou suffer injustice, console thyself; the true unhappiness is in doing it.” –  Democritus 40. “Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of a lover, everyone becomes a poet.” –  Plato

31. “It is a true man’s part not to err, but it is also noble of a man to perceive his error.” –   Apollonius of Tyana 32. “Knowledge without justice ought to be called cunning rather than wisdom.” –  Plato If you’re enjoying these quotes, you’ll love our collection of knowledge quotes for those who love learning. 33. “Riches do not exhilarate us so much with their possession as they torment us with their loss.” –  Epicurus 34. “Medicine to produce health must examine disease; and music, to create harmony must investigate discord.” –  Plutarch 35. “It is hard to contend against one’s heart’s desire; for whatever it wishes to have it buys at the cost of soul.” –  Heraclitus

26. “Good means not merely not to do wrong, but rather not to desire to do wrong.” –  Democritus 27. “There are two things a person should never be angry at, what they can help, and what they cannot.” –  Plato 28. “Much learning does not teach understanding.” –  Heraclitus 29. “The key is to keep company only with people who uplift you, whose presence calls forth your best.” –  Epictetus 30. “There was never a genius without a tincture of madness.” –  Aristotle

21. “It’s not what happens to you, but how you react to it that matters.” –  Epictetus 22. “I don’t need a friend who changes when I change and who nods when I nod; my shadow does that much better.” –  Plutarch 23. “Those who intend on becoming great should love neither themselves nor their own things, but only what is just, whether it happens to be done by themselves or others.” –  Plato 24. “Fate is the endless chain of causation, whereby things are; the reason or formula by which the world goes on.” –  Citium Zeno 25. “Even when laws have been written down, they ought not always to remain unaltered.” –  Aristotle

16. “When you are offended at any man’s fault, turn to yourself and study your own failings. Then you will forget your anger.” –  Epictetus If you’re enjoying these quotes, make sure to check out our collection of Friedrich Nietzsche quotes on life and love. 17. “He has the most who is most content with the least.” –  Diogenes 18. “Good character is not formed in a week or a month. It is created little by little, day by day. Protracted and patient effort is needed to develop good character.” –  Heraclitus 19. “Throw moderation to the winds, and the greatest pleasures bring the greatest pains.” –   Democritus 20. “Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws.” –  Plato

11. “Happiness resides not in possessions, and not in gold, happiness dwells in the soul.” –  Democritus 12. “Difficulties are things that show a person what they are.” –  Epictetus   (see more  Epictetus quotes ) 13. “True wisdom comes to each of us when we realize how little we understand about life, ourselves, and the world around us.” –  Socrates 14. “All the earth is mine, and I have a right to go all over it and through it.” –  Apollonius of Tyana 15. “Love is composed of a single soul inhabiting two bodies.” –  Aristotle

6. “You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.” –  Aristotle 7. “No man ever steps in the same river twice, for it’s not the same river and he’s not the same man.” –  Heraclitus 8. “For a man to conquer himself is the first and noblest of all victories.” –  Plato 9. “Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.” –   Aristotle 10. “If I had followed the multitude, I should not have studied philosophy.” –  Chrysippus

1. “We are what we repeatedly do. Excellence, then, is not an act, but a habit.” –  Aristotle 2. “The way to gain a good reputation is to endeavor to be what you desire to appear.” –  Socrates  (see more quotes by Socrates) 3. “The foundation of every state is the education of its youth.” –  Diogenes 4. “Courage is the first of human qualities because it is the quality which guarantees the others.” –  Churchill  5. “Worthless people live only to eat and drink; people of worth eat and drink only to live.” –  Socrates