"The idea that there is a 'mind' or 'consciousness' that is separate from the physical world is a delusion. It is a product of our language and our limited way of thinking."

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

"The path to knowledge is paved with doubt."

"The number of degrees of freedom of the cat is enormous. Is it possible that the cat is to be described by a wave function, which is a superposition of a live and a dead cat?"

"The more deeply we penetrate into nature, the more we find that it is full of mysteries."