The soul has two parts, one rational and the other irrational. Let us now similarly divide the rational part, and let it be assumed that there are two rational faculties, one whereby we contemplate those things whose first principles are invariable, and one whereby we contemplate those things which admit of variation.

Liars when they speak the truth are not believed.

Before you heal the body you must first heal the mind

Character is that which reveals moral purpose, exposing the class of things a man chooses and avoids.

In everything, it is no easy task to find the middle.

It is true, indeed, that the account Plato gives in 'Timaeus' is different from what he says in his so-called 'unwritten teachings.'

The man who confers a favour would rather not be repaid in the same coin.