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。
君子的为人之道是:外表暗淡无色而美德日见彰显。小人的为人之道是:外表色彩鲜明,但渐渐地消失了。君子的为人之道还在于:外表素淡而不使人厌恶,简朴而有文采,温和而又有条理,知道远是从近开始的,知道教化别人从自己做起,知道隐微的东西会逐渐显露,这样就进入圣人的美德中了。
We must invest in people as much as we invest in technology.
Stories are the way we make sense of our lives.
I will never stop creating because creation is life.