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。 
Every species has its own unique value and survival significance.
年龄不是指你活了多久,而是指你感觉自己有多老。
I like crossing the imaginary boundaries people set up between different fields—it's very refreshing.