The true value of a forest can never be measured in board feet alone.
The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.
金融市场通常是不可预测的。所以人们需要有各种不同的情景……认为你实际上可以预测将要发生的事情的想法与我对市场的看法相矛盾。
Risk comes from not knowing what you're doing.