Our knowledge is the amassed thought and experience of innumerable minds.

Men over forty are no judges of a book written in a new spirit.

I am at a loss to understand why people hold Miss Austen's novels at so high a rate, which seem to me vulgar in tone, sterile in artistic invention, imprisoned in their wretched conventions of English society, without genius, wit, or knowledge of the world. Never was life so pinched and narrow. ... All that interests in any character [is this]: has he (or she) the money to marry with? ... Suicide is more respectable.

Truth has already ceased to be itself if polemically said.

To get up each morning with the resolve to be happy is to set your own conditions to the events of each day. To do this is to condition circumstances instead of being conditioned by them.

I read your piece on Plato. Holmes, when you strike at a king, you must kill him.

Knowledge is the knowing that we cannot know.