I have no use for knowledge that has not been preceded by a sensation
God depends on us. It is through us that God is achieved.
I have never produced anything good except by a long succession of slight efforts.
Society knows perfectly well how to kill a man and has methods more subtle than death
Work and struggle and never accept an evil that you can change.
Envying another man's happiness is madness; you wouldn't know what to do with it if you had it.