Understanding a theory has, indeed, much in common with understanding a human personality. We may know or understand a man's system of dispositions pretty well; that is to say, we may be able to predict how he would act in a number of different situations. But since there are infinitely many possible situations, of infinite variety, a full understanding of a man's dispositions does not seem to be possible.

The future is always present, as a promise, a lure and a temptation.

Plato felt that a complete reconstruction of society's political program was needed.

We never know what we are talking about.

You cannot have a rational discussion with a man who prefers shooting you to being convinced by you.

If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

It is impossible to speak in such a way that you cannot be misunderstood.