Friendship is nothing else than entire fellow feeling as to all things human and divine with mutual good-will and affection; and I doubt whether anything better than this, wisdom alone excepted, has been given to man.

To some extent I liken slavery to death.

Diligence which, as it avails in all things, is also of the utmost moment in pleading causes. Diligence is to be particularly cultivated by us; it is to be constantly exerted; it is capable of effecting almost everything.

Let art, then, imitate nature, find what she desires, and follow as she directs. For in invention nature is never last, education never first; rather the beginnings of things arise from natural talent, and ends are reached by discipline.

You might as well take the sun out of the sky as friendship from life: for the immortal gods have given us nothing better or more delightful.

The great theatre for virtue is conscience.

If the soul has food for study and learning, nothing is more delightful than an old age of leisure.