Reasonable men adapt themselves to their environment; unreasonable men try to adapt their environment to themselves. Thus all progress is the result of the efforts of unreasonable men.

The early Christian rules of life were not made to last, because the early Christians did not believe that the world itself was going to last.

Vegetarians claim to be immune from most diseases but they have been known to die from time to time.

Life on board a pleasure steamer violates every moral and physical condition of healthy life except fresh air. . . . It is a guzzling, lounging, gambling, dog's life. The only alternative to excitement is irritability.

Science is always simple and always profound. It is only the half-truths that are dangerous.

Beauty is all very well at first sight; but who ever looks at it when it has been in the house three days?

But to admire a strong person and to live under that strong person’s thumb are two different things.