"Imagination is more important than knowledge."
"Anyone who has never made a mistake has never tried anything new."
"The secret to creativity is knowing how to hide your sources."
"The important thing is not to stop questioning. Curiosity has its own reason for existing."
"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."