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

In any assembly the simplest way to stop transacting business and split the ranks is to appeal to a principle.

Out of man's mind in free play comes the creation Science. It renews itself, like the generations, thanks to an activity which is the best game of homo ludens: science is in the strictest and best sense a glorious entertainment.

Only a great mind that is overthrown yields tragedy

You never step in the same river of thought twice, because neither you nor it are the same.

The danger that may really threaten (crime fiction) is that soon there will be more writers than readers

The test and the use of man's education is that he finds pleasure in the exercise of his mind.