How on earth can you explain in terms of chemistry and physics so important a biological phenomenon as first love? Put your hand on a stove for a minute and it seems like an hour. Sit with that special girl for an hour and it seems like a minute. That’s relativity.
Albert Einstein, to his secretary Helen Dukas (1956)
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Alice: How long is forever?
White rabbit: Sometimes, just one second.
Lewis Carroll, Alice in Wonderland (1865)