英文欣赏之人生感悟 （3）快乐之门
Happiness is like a pebble dropped into a pool to set in motion an ever-widening circle of ripples. 快乐就像一块为了激起阵阵涟漪而丢进池塘的小石头。 As Stevenson has said, being happy is a duty. 正好史蒂文森所说，快乐是一种责任。 There is no exact definition of the word happiness. 快乐这个词并没有确切的定义， Happy people are happy for all sorts of reasons...