Power politics existed before Machiavelli was ever heard of; it will exist long after his name is only a faint memory. What he did, like Harvey, was to recognize its existence and subject it to scientific study.

The taste of democracy becomes a bitter taste when the fullness of democracy is denied.

Science itself is a humanist in the sense that it doesn't discriminate between human beings, but it is also morally neutral. It is no better or worse than the ethos with and for which it is used.

Of the many things we have done to democracy in the past, the worst has been the indignity of taking it for granted.

The crime of book purging is that it involves a rejection of the word. For the word is never absolute truth, but only man's frail and human effort to approach the truth. To reject the word is to reject the human search.

We demand of our political life greater certainty and greater perfection than we demand of our personal life.

To reject the word is to reject the human search.