In our description of nature the purpose is not to disclose the real essence of the phenomena but only to track down, so far as it is possible, relations between the manifold aspects of our experience.

Anyone not shocked by quantum mechanics has not yet understood it.

Truth and clarity are complementary.

You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.

Predictions are hard, especially abot the future.

Accuracy and clarity of statement are mutually exclusive.

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