快乐之门

摘要：

Happiness is like a pebble dropped into a pool to set in motion an ever-widening circle of ripples.As Stevenson has said,”Being happy is a duty.”There is no exact definition of the word happiness.Happy people are happy for all sorts of reasons.The key is not wealth or physical well-being,since we find some beggars,invalids and so-called failures who are extremely happy.

在线出版日期：2018-12-21（万方平台首次上网日期，不代表论文的发表时间）

页数：共3页

页码：26-27,63