When you get as old as I am, you start to realize that you've told most of the good stuff you know to other people anyway.
Richard P. FeynmanScience 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.
Richard P. FeynmanDon't think about what you want to be, but what you want to do. Keep up some kind of a minimum with other things so that society doesn't stop you from doing anything at all.
Richard P. Feynman