Werner Heisenberg

"What we observe is not nature itself, but nature exposed to our method of questioning."

"Natural science, does not simply describe and explain nature it is part of the interplay between nature and ourselves."

"The violent reaction on the recent development of modern physics can only be understood when one realises that here the foundations of physics have started moving and that this motion has caused the feeling that the ground would be cut from science."

"Natural science, does not simply describe and explain nature it is part of the interplay between nature and ourselves."