每个人都有不为世人所知的秘密悲伤;很多时候,我们称一个人冷漠,而他只是悲伤。
解析:好善恶恶是人之本能。
The pursuit of knowledge is a journey without end, filled with wonder and discovery.
Wisdom comes to us when it can no longer do any good.
如果我们从一开始就能预见,甚至证明,遵循某种方法我们将达到我们的目标,那么这种解决方法就是完美的。
Happiness is not something ready-made. It comes from your own actions.