"The great difficulty for our contemporary way of thinking is that we must recognize the identity of the experiencing and the experienced subject."

"If you ask a theoretical physicist today, ‘What is an electron?’ he will probably say, ‘It is a symbol in the wave equation.’ We have got so far from the concrete picture of nature."

"The quantum mechanical description of reality is certainly incomplete."

"The fundamental laws of physics are statistical. They do not determine precisely what will happen, but only the probability of what will happen."

"The scientific picture of the world is very successful, but it is incomplete. It leaves out something essential, something that is very close to us, namely, our own consciousness."