"The meaning of our words depends on the context in which they are uttered."

"Everything we call real is made of things that cannot be regarded as real."

"The word 'reality' is also a word, a word which we must learn to use correctly."

"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."

"The purpose of science is not to answer ultimate questions, but to make progress in understanding."