Science is a way to teach how something gets to be known, what is not known, to what extent things are known (for nothing is known absolutely), how to handle doubt and uncertainty, what the rules of evidence are, how to think about things so that judgments can be made, how to distinguish truth from fraud, and from show.

Philosophy of science is about as useful to scientists as ornithology is to birds.

Why make yourself miserable saying things like, "Why do we have such bad luck? What has God done to us? What have we done to deserve this?" - all of which, if you understand reality and take it completely into your heart, are irrelevant and unsolvable. They are just things that nobody can know. Your situation is just an accident of life.

Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter.

Work hard to find something that fascinates you.

If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives.

We have this terrible struggle to try to explain things to people who have no reason to want to know.