Opposites are not contradictory but complementary.
The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.
Nothing exists until it is measured.
Physics is the belief that a simple and consistent description of nature is possible.
Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.
Predictions are hard, especially abot the future.