"The essence of mathematics lies in its freedom."

The advantage of a ridiculously ambitious goal is that it sets the bar very high so even in failure it may be a success measured by the ordinary.

In the end, we are all defined by the choices we make.

最好的投资策略是坚持有纪律的长期方法。

可持续性不仅仅是一个流行词，更是我们对后代的责任。

我们必须始终努力做正确的事，即使这很困难。

The best ideas come from frustration. The worst thing is when everything is perfect.