What we want is to see the child in pursuit of knowledge, and not knowledge in pursuit of the child.

As I write, there is a craze for what is called psychoanalysis, or the cure of diseases by explaining to the patient what is the matter with him: an excellent plan if you happen to know what is the matter with him, especially when the explanation is that there is nothing the matter with him.

I must ... warn my readers that my attacks are directed against themselves, not against my stage figures.

There are no secrets better kept than the secrets everybody guesses.

Our necessities are few, but our wants are endless.

An index is a great leveller.

I must remind you that our credulity is not to be measured by the truth of the things we believe. When men believed that the earthwas flat, they were not credulous: they were using their common sense, and, if asked to prove that the earth was flat, would have said simply, "Look at it." Those who refuse to believe that it is round are exercising a wholesome skepticism.