The real struggle is not between good and evil but between pain and pleasure.
真正的斗争不是在善与恶之间,而是在痛苦与快乐之间。
The best way to understand something is to try to change it.
现在如果送给别人很少的东西,却希望人家回报很多的东西,那么,人们就会怕你再送东西给自己了。