The doctors will treat those of your citizens whose physical and psychological constitution is good: as for the others, they will leave the unhealthy to die and those whose psychological constitution is incurably warped they will be put to death.

Love is born into every human being; it calls back the halves of our original nature together; it tries to make one out of two and heal the wound of human nature.

Anything worth knowing is already known and must be remembered and reclaimed by the soul.

He who gives himself to a lover because he is a good man, and in the hope that he will be improved by his company, shows himself to be virtuous, even though the object of his affection turn out to be a villain, and to have no virtue; and if he is deceived he has committed a noble error. For he has proved that for his part he will do anything for anybody with a view to virtue and improvement, than which there can be nothing nobler.

Do thine own work, and know thyself.

It is our duty to select the best and most dependable theory that human intelligence can supply, and use it as a raft to ride the seas of life.

He who can properly define and divide is to be considered a god.