世界上最好的论点也无法改变一个人的想法。唯一能做到这一点的，是一个好故事。
Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.
孔子说：“经常学习，不也喜悦吗？远方来了朋友，不也快乐吗？得不到理解而不怨恨，不也是君子吗？”
The only limit to our realization of tomorrow will be our doubts of today.