Act in such a way that you will be worthy of being happy.
Each according to his own way of seeing things, seek one goal, that is gratification.
No state at war with another state should engage in hostilities of such a kind as to render mutual confidence impossible when peace will have been made.
Animals... are there merely as a means to an end. That end is man.
Heaven has given human beings three things to balance the odds of life: hope, sleep, and laughter.
We ourselves introduce that order and regularity in the appearance which we entitle "nature". We could never find them in appearances had we not ourselves, by the nature of our own mind, originally set them there.