要理解递归，首先必须理解递归。
The goal of education is not to increase the amount of knowledge but to create the possibilities for a child to invent and discover, to create men who are capable of doing new things.
Love is the most important thing in the world.
我是一个偶尔喝酒的人，那种出去喝杯啤酒然后在新加坡醒来时满脸胡须的人。
出自汉·桓宽《盐铁论·疾贪》。欲，想。表，仪表，这句话指身体。下，指下属。先之身，先要求自己。要想影子正，就要先把自己的身子站直；要想下属清廉，自己要先做出表率。这句话以正影先正身为喻，说明正人先正己的道理。
可持续性不是一种选择；它是能源未来的必要条件。
"When I approach a child, he inspires in me two sentiments: tenderness for what he is, and respect for what he may become."
未来属于那些敢于相信不可能的人。
The truth is rarely pure and never simple.