Never try to discourage thinking, for you are sure to succeed.

I know a parson who frightened his congregation terribly by telling them the second coming was very imminent indeed, but they were much consoled when they found he was planting trees in his garden.

Joy of life... depends upon a certain spontaneity in regard to sex. Where sex is repressed, only work remains, and a gospel of work for work's sake never produced any work worth doing.

Love should be a tree whose roots are deep in the earth, but whose branches extend into heaven.

The world that I should wish to see would be one freed from the virulence of group hostilities and capable of realizing that happiness for all is to be derived rather from co-operation than from strife. I should wish to see a world in which education aimed at mental freedom rather than imprisoning the minds of the young in rigid armor of dogma calculated to protect them through life against the shafts of impartial evidence.

Every man, wherever he goes, is encompassed by a cloud of comforting convictions, which move with him like flies on a summer day.

When two men of science disagree, they do not invoke the secular arm; they wait for further evidence to decide the issue, because, as men of science, they know that neither is infallible. But when two theologians differ, since there is no criteria to which either can appeal, there is nothing for it but mutual hatred and an open or covert appeal to force.