It is easier to deceive yourself, and to do so unperceived, than to deceive another.
To know oneself is not necessarily to improve oneself
Jealousy is not love, but self-love.
Sometimes there are accidents in our lives the skillful extrication from which demands a little folly.
Reason alone is insufficient to make us enthusiastic in any matter.
A man of understanding finds less difficulty in submitting to a wrong-headed fellow, than in attempting to set him right.