The doctrine of Jesus is the most revolutionary propaganda that I have ever encountered.

I never heard a Christian sermon preached in a church.

If my father could watch my son for a while, he might realize his own immortality.

The Soviet government sprouted and grew out of the habits, the psychology, and the condition of the Russian people. It fitted them. They understand it.

We need some great failures. Especially we ever-successful Americans - conscious, intelligent, illuminating failures.

In science, probably ninety-nine percent of the knowable has to be discovered. We know only a few streaks about astronomy. We are only beginning to imagine the force and composition of the atom. Physics has not yet found any indivisible matter, or psychology a sensible soul.

Morality is only moral when it is voluntary.