He overcomes a stout enemy who overcomes his own anger.

The physician himself, if sick, actually calls in another physician, knowing that he cannot reason correctly if required to judge his own condition while suffering.

Moral qualities are so constituted as to be destroyed by excess and by deficiency . . .

A friend is simply one soul in two bodies.

He who cannot see the truth for himself, nor, hearing it from others, store it away in his mind, that man is utterly worthless.

The quality of life is determined by its activities.

It would be wrong to put friendship before the truth.