"The very act of observing disturbs the system."

"It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we can say about nature."

"Our task is not to penetrate the essence of things, but to develop concepts which allow us to talk in a productive way about phenomena."

"If an idea does not appear bizarre, there is no hope for it."

"The pursuit of knowledge is an endless journey."