The story of the Newton how to find out the theory of gravity is known to all. One day, when I am walking home, suddenly someone throw an apple to me, I see it fall down in front of me. I think of Newton’s story, I will never think in his way. That’s make a difference between the great person and normal one. 
牛顿是如何发现引力理论的故事是众所周知的。有一天,当我走回家时,突然有人扔给我一个苹果,我看着它掉在我的前面。我想起牛顿的故事,我怎么也不会以他的方式去思考。这就是伟大的人与普通的人之间的区别。