I do not believe that I am now dreaming, but I cannot prove that I am not.

I am myself a dissenter from all known religions, and I hope that every kind of religious belief will die out.

When two great powers disagree about anything - it doesn't matter what - they must find a way to settle it somehow by arbitration or by negotiation, not by war or threat of war.

That Plato's Republic should have been admired, on its political side, by decent people, is perhaps the most astonishing example of literary snobbery in all history.

The greatest challenge to any thinker is stating the problem in a way that will allow a solution.

Unless a man has been taught what to do with success after getting it, the achievement of it must inevitably leave him a prey to boredom.

An educator should think of a child as a gardener thinks of a plant, as something to be made to grow by having the right soil and the right amount of water. If your roses fail to bloom, it does not occur to you to whip them, but you try to find out what has been amiss in your treatment of them. ... The important thing is what the children do, and not what they do not do. And what they do, if it is to have value, must be a spontaneous expression of their own vital energy.