“An autocratic system of coercion, in my opinion soon degenerates. For force always attract men of low morality.”

“Force always attracts men of low morality.”

“It is a very grave mistake to think that the enjoyment of seeing and searching can be promoted by means of coercion and a sense of duty. To the contrary, I believe it would be possible to rob even a healthy beast of prey of its voraciousness, if it were possible, with the aid of a whip, to force the beast to devour continuously, even when not hungry.”

“The man with the greatest soul will always face the greatest war with the low minded person.”

“One had to cram all this stuff into one's mind for the examinations, whether one liked it or not. This coercion had such a deterring effect on me that, after I had passed the final examination, I found the consideration of any scientific problems distasteful to me for an entire year.”

“It occurred to me by intuition, and music was the driving force behind that intuition. My discovery was the result of musical perception.”

“Imagination is everything. It is the preview of life's coming attractions.”