Will power is to the mind like a strong blind man who carries on his shoulders a lame man who can see.
The greatest of follies is to sacrifice health for any other kind of happiness.
Patriotism when it wants to make itself felt in the domain of learning is a dirty fellow who should be thrown out of doors.
There is no absurdity so palpable but that it may be firmly planted in the human head if you only begin to inculcate it before the age of five by constantly repeating it with an air of great solemnity.
Hatred is an affair of the heart; contempt that of the head.
Men are by nature merely indifferent to one another; but women are by nature enemies.
They tell us that suicide is the greatest piece of cowardice that suicide is wrong; when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person.
The doctor sees all the weakness of mankind; the lawyer all the wickedness the theologian all the stupidity.
The two enemies of human happiness are pain and boredom.