Slowly and imperceptibly old age comes creeping on.

No power is strong enough to be lasting, if it labours under the weight of fear.

. . . for until that God who rules all the region of the sky . . . has freed you from the fetters of your body, you cannot gain admission here. Men were created with the understanding that they were to look after that sphere called Earth, which you see in the middle of the temple. Minds have been given to them out of the eternal fires you call fixed stars and planets, those spherical solids which, quickened with divine minds, journey through their circuits and orbits with amazing speed.

Quacks pretend to cure other men's disorders, but fail to find a remedy for their own.

Nothing is so difficult to believe that oratory cannot make it acceptable, nothing so rough and uncultured as not to gain brilliance and refinement from eloquence.

Guilt is present in the very hesitation, even though the deed be not committed.

The pursuit, even of the best things, ought to be calm and tranquil.