Charles Darwin -
"An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men."
http://www.brainyquote.com/quotes/authors/c/charles_darwin.html
The very first requirement in a hospital is that it should do the sick no harm.
Stephen Hawkins -
"In an infinite and everlasting universe, every line of sight would end on the surface of a star. This would mean that the night sky would have been as bright as the surface of the Sun. The only way of avoiding this problem would be if, for some reason, the stars did not shine before a certain time."