The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action.

As the area of light expands, so does the perimeter of darkness.

All our thinking is of this nature, a free play with concepts.

A man who is convinced of the truth of his religion is indeed never tolerant. At the least, he is to feel pity for the adherent of another religion but usually it does not stop there. The faithful adherent of a religion will try first of all to convince those that believe in another religion and usually he goes on to hatred if he is not successful. However, hatred then leads to persecution when the might of the majority is behind it.

The theoretical idea ... does not arise apart from and independent of experience; nor can it be derived from experience by a purely logical procedure. It is produced by a creative act. Once a theoretical idea has been acquired, one does well to hold fast to it until it leads to an untenable conclusion.

The value of achievement lies in the achieving.

While you're trying to get ahead, remember to get aheart as well. When your only problem IS a nail, all you want is a decent hammer. There are only two ways to live your life: one is as though nothing is a miracle; the other is as though everything is a miracle.