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

The existence of virtue depends entirely upon its use.

In a promise, what you thought, and not what you said, is always to be considered.

While all other things are uncertain, evanescent, and ephemeral, virtue alone is fixed with deep roots; it can neither be overthrown by any violence or moved from its place.

Whatever is done without ostentation, and without the people being witnesses of it, is, in my opinion, most praiseworthy: not that the public eye should be entirely avoided, for good actions desire to be placed in the light; but notwithstanding this, the greatest theater for virtue is conscience.

Every evil in the bud is easily crushed: as it grows older, it becomes stronger.

It is exercise alone that supports the spirits, and keeps the mind in vigor.