Jealousy is the paralysis of love.
It is good to be firm by temperament and pliant by reflection.
Men despise great projects when they do not feel themselves capable of great successes.
We are so presumptuous that we think we can separate our personal interest from that of humanity, and slander mankind without compromising ourselves.
All grand thoughts come from the heart.
The mind is the soul's eye, not its source of power. That lies in the heart, in other words, in the passions.