Mathematics is the most beautiful and most powerful creation of the human spirit.

The market is a great teacher, but it charges a high tuition.

建筑是一种挑战，是对极限的挑战。

歧视更可能由那些能够承担其代价的人实施。

我没有信仰原则，如果你没注意到的话。

I think it's important to keep challenging yourself and not get too comfortable.

The fundamental principle of security is to minimize the amount of trust you place in other components.