After being boxed in by man and his constructions in Europe and the East, the release into space is exhilarating. The horizon is a huge remote circle, and no hills intervene.

The book, like the bicycle, is a perfect form.

The ascetic is often a sensualist who has reached the limit of his capacity.

Science is, in the best and strictest sense, glorious entertainment

The intellectuals' chief cause of anguish are one another's works.

Teaching is not a lost art, but the regard for it is a lost tradition.

I'll read, and then I'll take naps. When I feel sleep coming on, I give in and don't fight it.