凡人之一生，均有苦有乐。然就一个人而言，苦与乐的程度各异，长短不一，先后非同。其中奥秘，大有探讨的必要。有人说，欲的满足为乐，欲而未得为苦。这句貌似有理的话，笔者却不以为然：欲如无底之洞，无满足的时候；天良是天赋予人的无价之宝，能正确评判是非；欲是天良的? Life of a mortal, are suffering and have fun. However, as far as a person is concerned, the level of hardship and pleasure vary from one genre to another. One mystery, a lot of discussion necessary. Some people say that the desire to satisfy for the pleasure, but not for the pain. This seemingly reasonable words, the author does not agree: like a bottomless hole, no time to meet; natural goodness is the priceless gift of talent, the right to judge right and wrong; want to be good?