| Quote | Philosopher |
| Act only on that maxim through which you can at the same time will that it should become a universal law. | |
| The unexamined life is not worth living. | |
| I think, therefore I am. | |
| The good man, though a slave, is free; the wicked, though he reigns, is a slave. | |
| Let the states of equilibrium and harmony exist in perfection, and a happy order will prevail throughout heaven and earth | |
| Mathematics, rightly viewed, possesses not only truth, but supreme beauty. | |
| The life of man is solitary, poor, nasty, brutish, and short. | |
| Be Excellent to each other... Party on, dudes! | |
| It is safer to be feared than loved. | |
| | Quote | Philosopher |
| No one saves us but ourselves, no one can and no one may. | |
| The proletarians have nothing to lose but their chains. They have a world to win. Working men of the world, unite! | |
| And when you gaze long into an abyss the abyss also gazes into you. | |
| All that is necessary for the triumph of evil is that good men do nothing. | |
| Man is born free; and everywhere he is in chains. | |
| The cause of America is in a great measure the cause of all mankind. | |
| Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. | |
| You must be the change you wish to see in the world. | |
| ...the only way a government can be of service to national prosperity is by keeping its hands off. | |
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