布莱克-斯科尔斯模型的美妙之处在于它将期权定价问题简化为几个可观察的变量。
成功不在于成为最好的,而在于成为最能适应的。
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
The bond market is the most important market in the world.