恰恰是好的事物会带来不好的一面（双刃剑，一个硬币的两面？）；

也就是说，快乐和满足总会带来其他的欲望，而一定程度的痛苦却反而会浇灭这些欲望。

——叔本华《论世间苦难》

“On the Suffering of the World” Arthur Schopenhauer states:“It is the good which is negative; in other words， happiness and satisfaction always imply some desire fulfilled， some state of pain brought to an end.”

不知道翻译的如何，反正这个观点有点辩证的思想，有点像塞翁失马？

window.fkp = "d2luZG93Lm9ua2V5Zm9jdXMoIkRRQWNwR3VJSTdMb1lYSlNnR3NQZVMxN2R0VUh0MVJoOTh5R1B3ZThaWXBKMDJ1K3ZPbzNpd1FYSjZPdFVFUUpWN01Edks4VWFRRHAvS29hWnF1UUpNdkhEWVlPNmFLQWVhNHRkUURiVFY4cmNqWjZ4Sy9vYTl4a1hiRjZ6czN3IiwgMTYzMjI3OTEyMyk=";