The end of all our exploring will be to arrive where we started and know the place for the first time.
理解布莱克-斯科尔斯模型的关键在于认识到它是基于风险中性世界的概念,在这个世界中投资者对风险漠不关心。
The Web as I envisaged it, we have not seen it yet. The future is still so much bigger than the past.
有些伤口永远不会愈合,只会结痂。