Stupidity is sometimes the greatest of historical forces.

The difference between science and religion is that the former wishes to get rid of mysteries whereas the latter worships them.

Idealism, alas, does not protect one from ignorance, dogmatism, and foolishness.

Everyone who remembers his own education remembers teachers, not methods and techniques. The teacher is the heart of the educational system.

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.

Religious freedom in an open society has the best prospects of flourishing to the extent that it expresses itself as freedom of religious inquiry.

[A]nti-Semitism was rife in almost all varieties of socialism.