Predition is risky, especially of the future.

Oh what idiots we have all been, this is just as it must be

Every valuable human being must be a radical and a rebel, for what he must aim at is to make things better than they are.

It is, indeed, perhaps the greatest prospect of humanistic studies to contribute through an increasing knowledge of the history of cultural development to that gradual removal of prejudices which is the common aim of all science.

Never express yourself more clearly than you are able to think.

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

When searching for harmony in life one must never forget that in the drama of existence we are ourselves both actors and spectators.