The greatest test of courage on earth is to bear defeat without losing heart.
Courage without conscience is a wild beast.
The true civilization is where every man gives to every other every right that he claims for himself.
Any doctrine that will not bear investigation is not a fit tenant for the mind of an honest man.
There are in nature neither rewards nor punishments, there are consequences.
There is no slavery but ignorance.
Anger is a wind which blows out the lamp of the mind.
In nature there are neither rewards nor punishments. There are consequences.
In nature there are neither rewards nor punishment; there are consequences.
Give to every other human being every right that you claim for yourself.