Theologians always try to turn the Bible into a book without common sense.

The most successful tempters and thus the most dangerous are the deluded deluders.

Just as there are polysyllabic words that say very little, so there are also monosyllabic words of infinite meaning.

Perhaps in time the so-called Dark Ages will be thought of as including our own.

The thoughts written on the walls of madhouses by their inmates might be worth publicizing.

Nothing puts a greater obstacle in the way of the progress of knowledge than thinking that one knows what one does not yet know.

As I take up my pen I feel myself so full, so equal to my subject, and see my book so clearly before me in embryo, I would almost like to try to say it all in a single word.