A civilization in which there is not a continuous controversy about important issues is on the way to totalitarianism and death. – Robert Maynard Hutchins

Man — despite his artistic pretensions, his sophistication, and his many accomplishments — owes his existence to a six inch layer of topsoil and the fact that it rains. – Author and exact wording unknown, I’ve been told this was quoted by Paul H

We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on. – Richard P. Feynman