There is nothing as precious to man as a sound mind in a sound body and it is essential that the physical well being of our people merits as much attention as its spiritual welfare
We early arrive at the great discovery that there is one mind common to all individual men: that what is individual is less than what is universalthat error, vice and disease have their seat in the superficial or individual nature.
Enlightenment is man's leaving his self-caused immaturity. Immaturity is the incapacity to use one's intelligence without the guidance of another. Such immaturity is self-caused if it is not caused by lack of intelligence, but by lack of determination and courage to use one's intelligence without being guided by another. Sapere Aude! Have the courage to use your own intelligence! is therefore the motto of the enlightenment.
If a man should conquer in battle a thousand and a thousand more, and another should conquer himself, his would be the greater victory, because the greatest of victories is the victory over oneself.
Human beings consider themselves satisfied only compared to some other condition. A man who has owned nothing but a bicycle all of his life feels suddenly wealthy the moment he buys an automobile...But this happy sensation wears off. After a while the car becomes just another thing that he owns. Moreover, when his neighbor next door buys two cars, in an instant our man feels wretchedly poor and deprived.
I have not yet spoken my last word about women. I believe that if a woman succeeds in withdrawing from the mass, or rather raising herself from above the mass, she grows ceaselessly and more than a man.
Man has a tendency to try to give clear reasons to be rational, but often you can see how all those reasons are not convincing and turn out to be a big nonsense.
I think all men know better than they do; know that the institutions we so volubly commend are go-carts and baubles; but they darenot trust their presentiments.
Ye may kill for yourselves, and your mates, and your cubs as they need, and ye can; But kill not for pleasure of killing, and seven times never kill Man!