"Our civil rights have no dependence on our religious opinions any more than our opinions in physics or geometry."

"Bad times have a scientific value. These are occasions a good learner would not miss."

"Sometimes a scream is better than a thesis."

"I would teach children music, physics, and philosophy; but most importantly music, for the patterns in music and all the arts are the keys to learning."

"The greatest science in the world; in heaven and on earth; is love."

"One of the great problems of mankind is that we suffer from a poverty of the spirit which stands in glaring contrast to our scientific and technological abundance."