Most people go on living their everyday life: half-frightened, half indifferent, they behold the ghostly tragic-comedy that is being performed on the international stage before the eyes and ears of the world.

If everybody lived as I do, surely the writing of romance novels would never have come into being.

Mysticism is in fact the only criticism people cannot level against my theory.

If only I had known, I should have become a watchmaker.

Let every man judge according to his own standards, by what he has himself read, not by what others tell him.

When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter.

I advocate world government because I am convinced that there is no other possible way of eliminating the most terrible danger in which man has ever found himself. The objective of avoiding total destruction must have priority over any other objective.