Cunning and treachery are the offspring of incapacity.
It is as proper to have pride in oneself as it ridiculous to show it to others.
Boredom ... causes us to neglect more duties than does interest.
There are no accidents so unlucky from which clever people are not able to reap some advantage, and none so lucky that the foolish are not able to turn them to their own disadvantage.
We have not enough strength to follow all our reason.
There are some faults which, when well managed, make a greater figure than virtue itself.