There is power in ambition, pleasure in luxury...but envy can gain nothing but vexation.

Of the opinions of philosophy I most gladly embrace those that are most solid, that is to say, most human and most our own; my opinions, in conformity with my conduct, are low and humble.

The most profound joy has more of gravity than of gaiety in it.

Amongst all other vices there is none I hate more than cruelty, both by nature and judgment, as the extremest of all vices.

It is much more easy to accuse the one sex than to excuse the other.

If virtue cannot shine bright, but by the conflict of contrary appetites, shall we then say that she cannot subsist without the assistance of vice, and that it is from her that she derives her reputation and honor?

The worst condition of humans is when they lose knowledge and control of themselves.