Once, when asked to enter a newspaper competition to write an article explaining how light is bent by gravity, he joked that the competition was much too difficult for him to enter.

• 曾经，当被邀请写一篇解释光是如何被引力所弯曲的文章来参加一家报纸举办的竞赛，他开玩笑说这个竞赛对他来说太难了，他无法参加。