A conviction akin to religious feeling of the rationality or intelligibility of the world lies behind all scientific work of a high order.

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.

Though our conduct seems so very different from that of the higher animals, the primary instincts are much alike in them and in us.

The man with the greatest soul will always face the greatest war with the low minded person.

The daily struggle does not arise from a purpose or a program, but from an immediate need.

Science has gone a long way toward helping man to free himself from the burden of hard labor; yet, science itself is not a liberator. It creates means, not goals. It is up to men to utilize those means to achieve reasonable goals.

A hundred times every day I remind myself that my inner and outer life are based on the labors of others.