When a man comes to me and says, "All of the major problems of science have been solved" - I like to ask him the simple question, "Why is  grass green?" Some day scientists will get the answer. I hope this happens while I am still alive but that is not important because it may take a long time.

     But regardless of this, the open-minded researcher will continue to operate on the principle that the surface has just been scratched - what is known of nature's processes is very little indeed and the World of Today will seem quite primitive and amateurish in the light of discoveries to be made in the World of Tomorrow.     ●