Whatever discoveries we may have made in the regions of self-love, there still remain many unknown lands.

Some follies are caught, like contagious diseases.

To be a great man it is necessary to turn to account all opportunities.

There are a great many simpletons who know themselves to be so, and who make a very cunning use of their own simplicity.

The principal point of cleverness is to know how to value things just as they deserve.

There is scarcely any man sufficiently clever to appreciate all the evil he does.

A man often thinks he rules himself, when all the while he is ruled and managed; and while his understanding directs one design, his affections imperceptibly draw him into another.