No, no, you're not thinking; you're just being logical.

Prediction is very difficult, especially if it's about the future.

Truth and clarity are complementary.

When we measure something we are forcing an undetermined, undefined world to assume an experimental value. We are not measuring the world, we are creating it.

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

Of course I don't believe in it [pointing to horseshoe on his office wall]. But I understand that it brings you luck whether you believe in it or not.

It is very difficult to make an accurate prediction, especially about the future.