Learning is often spoken of as if we are watching the open pages of all the books which we have ever read, and then, when occasion arises, we select the right page to read aloud to the universe.

I consider Christian theology to be one of the great disasters of the human race.

Education is the acquisition of the art of the utilisation of knowledge.

What we perceive as the present is the vivid fringe of memory tinged with anticipation.

Every really new idea looks crazy at first.

An enormous part of our mature experience cannot not be expressed in words.

No Roman ever died in contemplation over a geometrical diagram.