I think I've always had a certain amount of skepticism of this whole 'shut up and smile' theory. I haven't ever swallowed that pill so easily although I tried.

The virtues of science are skepticism and independence of thought.

In science a healthy skepticism is a professional necessity whereas in religion having belief without evidence is regarded as a virtue.

The same principles which at first view lead to skepticism pursued to a certain point bring men back to common sense.

I have a lot of skepticism about marriage and monogamy.

Dogmatism and skepticism are both in a sense absolute philosophies one is certain of knowing the other of not knowing. What philosophy should dissipate is certainty whether of knowledge or ignorance.

Skepticism is a virtue in history as well as in philosophy.

Somehow liberals have been unable to acquire from life what conservatives seem to be endowed with at birth: namely a healthy skepticism of the powers of government agencies to do good.

Skepticism riddling the faith of yesterday prepared the way for the faith of tomorrow.

Skepticism has never founded empires established principals or changed the world's heart. The great doers in history have always been people of faith.