Idealism, alas, does not protect one from ignorance, dogmatism, and foolishness.
No one who accepts the sovereignty of truth can be a foot soldier in a party or movement. He will always find himself out of step.
Stupidity is sometimes the greatest of historical forces.
Tolerance always has limits - it cannot tolerate what is itself actively intolerant.
Students rarely disappoint teachers who assure them in advance that they are doomed to failure.
Religious freedom in an open society has the best prospects of flourishing to the extent that it expresses itself as freedom of religious inquiry.