Compromise cannot be allowed in cases where the exact truth is ascertainable.

Life is magical. There is something wonderful in being alive, in having within one's self all sorts of possibilities.

Vanity is easily forgiven, for we are all vain, and even as we laugh at the weakness of others we feel that their vanity has touched the responding chord of our own.

True love survives all shocks: an affection originally produced by admiration for unusual beauty may not only survive the loss of that beauty, but may become more intense if the beauty has changed into ugliness through causes that bind the lovers together in tender associations.

Optimism will grow like a flower if the soil be properly prepared.

Some people would be discontented in Paradise, others ... are cheerful in a graveyard.

Yet as I cast my eye over the whole course of science I behold instances of false science, even more pretentious and popular than that of Einstein gradually fading into ineptitude under the searchlight; and I have no doubt that there will arise a new generation who will look with a wonder and amazement, deeper than now accompany Einstein, at our galaxy of thinkers, men of science, popular critics, authoritative professors and witty dramatists, who have been satisfied to waive their common sense in view of Einstein's absurdities.