Albert Einstein, 1879-1955
was an US (German-born) physicist
When 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.
If my theory of relativity proves to be correct, Germany will claim me a German, and France will claim me a citizen of the world. However, if it proves wrong, France will say I'm a German, and Germany will say that I'm a jew.
Gravitation cannot be held responsible for people falling in love. 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.