Science is the organized skepticism in the reliability of expert opinion

What is necessary for 'the very existence of science,' and what the characteristics of nature are, are not to be determined by pompous preconditions, they are determined always by the material with which we work, by nature herself. We look, and we see what we find, and we cannot say ahead of time successfully what it is going to look like. ... It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.

My friends and I had taken dancing lessons, although none of us would ever admit it. In those depression days, a friend of my mother was trying to make a living by teaching dancing in the evening, in an upstairs dance studio. There was a back door to the place, and she arranged it so the young men could come up through the back way without being seen.

I would rather have questions that can't be answered than answers that can't be questioned.

We need to teach how doubt is not to be feared but welcomed. It's OK to say, "I don't know."

Another thing I must point out is that you cannot prove a vague theory wrong.

What would happen if we could arrange the atoms one by one the way we want them?