In their struggle for the ethical good, teachers of religion must have the stature to give up the doctrine of a personal god, that is, give up that source of fear and hope which in the past placed such vast power in the hands of priests. In their labors they will have to avail themselves of those forces which are capable of cultivating the Good, the True, and the Beautiful in humanity itself. This is, to be sure, a more difficult but an incomparably more worthy task.

Education is what is left after you've forgotten everything you've learned.

By academic freedom I understand the right to search for truth and to publish and teach what one holds to be true. This right also implies a duty: one must not conceal any part of what one has recognized to be true.

Now to the term 'relativity theory.' I admit that it is unfortunate, and has given occasion to philosophical misunderstandings.

America is today the hope of all honorable men who respect the rights of their fellow men and who believe in the principle of freedom and justice.

There is nothing divine about morality, it is a purely human affair.

The true measure of a man is the degree to which he has managed to subjugate his ego.