It was a revelation, a liberation. Physicists, mathematicians, astronomers, logicians, biologists, all were here at the University, and they came to him or he went to them, and they talked, and new worlds were born of their talking. It is of the nature of idea to be communicated: written, spoken, done. The idea is like grass. It craves light, likes crowds, thrives on crossbreeding, grows better for being stepped on.
