交易中最重要的事情是保护你的资本。
The most important thing in trading is to preserve your capital.
The state is the most important institution in human society because it is the only one that can legitimately use force to maintain order.
能源的未来在于多元化和低碳解决方案。
追求数学知识是一段永无止境的旅程;总有更多的东西等待发现和理解。