创建和维持大型复杂组织的能力是区分成功社会与不成功社会的关键因素之一。
Mathematics is a living subject, constantly evolving and growing.
如果你不害怕,你会做什么?
The stock market is a voting machine in the short term and a weighing machine in the long term.
如果要从正确和善良中,做出选择,请选择善良。