My God! Who is this creature? It considers itself human. - Saul Bellow

The challenge of modern freedom, or the combination of isolation and freedom which confronts you, is to make yourself up. The danger is that you may emerge from the process as a not-entirely-human creature.
(Referenced in How to Lose Friends and Alienate People by Toby Young)

You don't know the meaning of true love if you think it can be deliberately selected. You just love, that's all. A natural force, irresistible.

Brother raises a hand against brother and son against father (how terrible!) and the father also against son. And moreover it is a continuity-matter, for if the father did not strike the son, they would not be alike. It is done to perpetuate similarity. Oh, Henderson, man cannot keep still under the blows.... A hit B? B hit C? — we have not enough alphabet to cover the condition. A brave man will try to make the evil stop with him. He shall keep the blow. No man shall get it from him, and that is a sublime ambition.