In the long course of history, having people who understand your thought is much greater security than another submarine."

We must dare to think unthinkable thoughts.

"We have the power to do any damn fool thing we want to do, and we seem to do it about every ten minutes."

"In a democracy dissent is an act of faith. Like medicine, the test of its value is not in its taste, but its effects."

I think we Americans tend to put too high a price on unanimity . . . as if there were something dangerous and illegitimate about honest differences of opinion honestly expressed by honest men.