"Wars will remain while human nature remains. I believe in my soul in cooperation, in arbitration; but the soldier's occupation we cannot say is gone until human nature is gone"
"Art is not merely an imitation of the reality of nature, but in truth a metaphysical supplement to the reality of nature, placed alongside thereof for its conquest"
"Habit is a second nature that destroys the first. But what is nature? Why is habit not natural? I am very much afraid that nature itself is only a first habit, just as habit is a second nature"