"The only possible interpretation of quantum theory is that there are no particles."

"The most important thing for a scientist is to be open to new ideas and to be willing to question established beliefs."

"We are told such a number as the square root of 2 worried Pythagoras and his school almost to exhaustion. Being used to such queer numbers from early childhood, we must be careful not to form a low id…"

"I am very astonished that the scientific picture of the real world around me is very deficient. It gives a lot of factual information, puts all our experience in a magnificently consistent order, but …"

"The human mind is a universe in itself."