1. "Of course, you'll have to meet the physical and psychological demands. A space walk takes a lot of energy".
-- Leroy Chiao
2. "All personal, psychological, social, and institutionalized domination on this earth can be traced back to its source: the phallic identities of men".
-- Andrea Dworkin
3. "The great book for you is the book that has the most to say to you at the moment when you are reading. I do not mean the book that is most instructive, but the book that feeds your spirit. And that depends on your age, your experience, your psychological and spiritual need".
-- Robertson Davies
4. "Research is what I'm doing when I don't know what I'm doing".
-- Wernher von Braun
5. "Science cannot solve the ultimate mystery of nature. And that is because, in the last analysis, we ourselves are part of nature and therefore part of the mystery that we are trying to solve".
-- Max Planck
