Falling in love is not at all the most stupid thing that...

Falling in love is not at all the most stupid thing that people do, but gravitation cannot be held responsible for it. Scribbled by Einstein on a letter received during a visit to England (1933) from a man who suggested that gravity meant that as the world rotated people were sometimes upside down, horizontal, or at 'left angles' and that perhaps, this disorientation explained why people do foolish things like falling in love.