When a superior intellect and a psychopathic temperament coalesce in the same individual, we have the best possible condition for the kind of effective genius that gets into the biographical dictionaries.

We divert our attention from disease and death as much as we can; the slaughterhouses are huddled out of sight and never mentioned, so that the world we recognize officially in literature and in society is a poetic fiction far handsomer, cleaner and better than the world that really is.

Whilst part of what we perceive comes through our senses from the object before us, another part (and it may be the larger part) always comes out of our own mind.

The deepest principle in human nature is the craving to be appreciated.

I believe there is no source of deception in the investigation of nature which can compare with a fixed belief that certain kinds of phenomena are IMPOSSIBLE.

A winner's attitude: it may be difficult, but it's possible. A loser's attitude: It may be possible, but it's too difficult.

A thing is important if anyone think it important.