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.
现实的定义变成了：能够给出等价复制的东西。
以德行来排列位次,按官职来处理政事,按照劳绩来决定赏赐,衡量功勋二分给俸禄。
In mathematics, truth is found not through consensus but through proof.
"The most beautiful thing we can experience is the mysterious. It is the source of all true art and science."