If you're not prepared to be wrong, you'll never come up with anything original.
理解布莱克-斯科尔斯模型的关键在于认识到它是基于创建无风险对冲的理念。
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.