We must, if we are to be consistent, and if we re to have a real pedigree herd, mate the best of our men with the best of our women as often as possible, and the inferior men with the inferior women as seldom as possible, and keep only the offspring of the best.

The one who learns and learns and doesn't practice is like the one who plows and plows and never plants.

Justice means minding one's own business and not meddling with other men's concerns.

Of all the Gods, Love is the best friend of humankind, the helper and healer of all ills that stand in the way of human happiness.

There should be no element of slavery in learning. Enforced exercise does no harm to the body, but enforced learning will not stay in the mind. So avoid compulsion, and let your children's lessons take the form of play.

My good friend, you are a citizen of Athens, a city which is very great and very famous for its wisdom and power - are you not ashamed of caring so much for the making of money and for fame and prestige, when you neither think nor care about wisdom and truth and the improvement of your soul?

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