Nonetheless, it still remains true that as a set of cognitive beliefs, religious doctrines constitute a speculative hypothesis of an extremely low order of probability.

Stupidity is sometimes the greatest of historical forces.

Tolerance always has limits - it cannot tolerate what is itself actively intolerant.

To serve the public interest is not the same as being a servant of public opinion.

I was guilty of judging capitalism by its operations and socialism by its hopes and aspirations; capitalism by its works and socialism by its literature.

Fear of death has been the greatest ally of tyranny past and present.

Religious tolerance has developed more as a consequence of the impotence of religions to impose their dogmas on each other than as a consequence of spiritual humility in the quest for understanding first and last things.