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

If you aren't confused by quantum mechanics, you haven't really understood it.

Every sentence I utter must be understood not as an affirmation, but as a question.

The opposite of every great idea is another great idea.

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

What is that we human beings ultimately depend on? We depend on our words. We are suspended in language. Our task is to communicate experience and ideas to others.

We depend on our words... Our task is to communicate experience and ideas to others. We must strive continually to extend the scope of our description, but in such a way that our messages do not thereby lose their objective or unambiguous character... We are suspended in language in such a way that we cannot say what is up and what is down. The word "reality" is also a word, a word which we must learn to use correctly.