Even at sixteen I wondered at them morosely; even then I was struck by the pettiness of their thoughts, the stupidity of their pursuits, their games, their conversations. They had no understanding of such essential things, they took no interest in such striking, impressive subjects, that I could not help considering them inferior to myself.
I want to talk about everything with at least one person as I talk about things with myself.
Did I murder the old woman? I murdered myself, not her! I crushed myself once for all, for ever...
I am a fool with a heart but no brains, and you are a fool with brains but no heart; and we're both unhappy, and we both suffer.
Stupidity is honest and straightforward.
Grown-up people do not know that a child can give exceedingly good advice even in the most difficult case.