Chess holds its master in its own bonds, shackling the mind and brain so that the inner freedom of the very strongest must suffer.
Albert EinsteinWhen you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity.
Albert EinsteinConcepts which have proved useful for ordering things easily assume so great an authority over us, that we forget their terrestrial origin and accept them as unalterable facts. They then become labeled as 'conceptual necessities,' etc. The road of scientific progress is frequently blocked for long periods by such errors.
Albert Einstein