A doctor's reputation is made by the number of eminent men who die under his care.

Start with the belief that your life can indeed be changed, and that you have the power to change it.

We are more gullible and superstitious today than we were in the Middle Ages, and an example of modern credulity is the widespread belief that the Earth is round. The average man can advance not a single reason for thinking that the Earth is round. He merely swallows this theory because there is something about it that appeals to the twentieth century mentality.

You sometimes have to answer a woman according to her womanliness, just as you have to answer a fool according to his folly.

I do not waste my time writing pot-boilers: the pot must be boiled, and even my pot au feu has some chunks of fresh meat in it. ...I have no time to boil myself down; and anyhow I could not do so and preserve all the necessary nutriment and the flavoring on which the digestibility depends.

If we have come to think that the nursery and the kitchen are the natural sphere of a woman, we have done so exactly as English children come to think that a cage is the natural sphere of a parrot: because they have never seen one anywhere else.

There is only one religion, though there are a hundred versions of it.