I am just as deaf as I am blind. The problems of deafness are deeper and more complex, if not more important than those of blindness. Deafness is a much worse misfortune. For it means the loss of the most vital stimulus- the sound of the voice that brings language, sets thoughts astir, and keeps us in the intellectual company of man.

Toleration is the greatest gift of the mind.

I can see, and that is why I can be happy, in what you call the dark, but which to me is golden. I can see a God-made world, not a manmade world.

Serious harm, I am afraid, has been wrought to our generation by fostering the idea that they would live secure in a permanent order of things.

Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing.

Good friends walk in when the old ones walk out.

Now I feel as if I should succeed in doing something in mathematics, although I cannot see why it is so very important. . . The knowledge doesn't make life any sweeter or happier, does it?