Plato

Science is nothing but perception.

The first and best victory is to conquer self; to be conquered by self is, of all things, the most shameful and vile.

The man who makes everything that leads to happiness depend upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom.

The ludicrous state of solid geometry made me pass over this branch.

The noblest of all studies is the study of what man is and of what life he should live.

Man is a prisoner who has no right to open the door of his prison and run away. . . . A man should wait, and not take his own life until God summons hiom.

When there is an income tax, the just man will pay more and the unjust less on the same amount of income.

The partisan, when he is engaged in a dispute, cares nothing about the rights of the question, but is anxious only to convince his hearers of his own assertions.

To do injustice is more disgraceful than to suffer it.

The true lover of learning then must his earliest youth, as far as in him lies, desire all truth. . . . He whose desires are drawn toward knowledge in every form will be absorbed in the pleasures of the soul, and will hardly feel bodily pleasures - I mean, if he be a true philosopher and not a sham one . . . Then how can he who has the magnificence of mind and is the spectator of all times and all existence, think much of human life? He cannot. Or can such a one account death fearful? No indeed.