"We must dare to think 'unthinkable' thoughts. We must learn to explore all the options and possibilities that confront us in a complex and rapidly changing world."

"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."

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

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