The mind cannot long play the heart's role.
To be a great man it is necessary to turn to account all opportunities.
It is as easy to unknowingly deceive yourself as it is to deceive others.
It is the prerogative of great men only to have great defects.
Self-love is more cunning than the most cunning man in the world.
We frequently are troublesome to others, when we think it impossible for us ever to be so.