Werner Heisenberg — "Quantum theory does not really describe the behavior of 'things'; it describes t…"

"If a man is to be a good physicist, he must have an intuitive grasp of the physical reality, which can be acquired only by much experience."

"When we speak of a picture of reality, we always mean a classical picture."

"I was forced to find a new way of expressing the fundamental laws of nature, one which would not rely on the outdated concepts of classical physics."

"We have to remember that what we observe is not nature in itself but nature exposed to our method of questioning."

"Modern physics has, in a certain sense, revived Plato's philosophy of forms in the atomic world."