“Respectable opinion would never consider an assessment of the Reagan Doctrine or earlier exercises in terms of their actual human costs, and could not comprehend that such an assessmentwhich would ...”

“Do you train for passing tests or do you train for creative inquiry?”

“If you give up every time you don't achieve the immediate gain you want, you're just guaranteeing that the worst is going to happen... You can't expect an easy victory after one protest march.”

“I was never aware of any other option but to question everything.”

“The only debatable issue, it seems to me, is whether it is more ridiculous to turn to experts in social theory for general well-confirmed propositions, or to the specialists in the great religions ...”

“Either you repeat the same conventional doctrines everybody is saying, or else you say something true, and it will sound like it's from Neptune.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”