When you betray somebody else, you also betray yourself.

从长远来看，经济前景是乐观的，但从长远来看，我们都死了。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

最成功的企业是那些比任何人都更了解客户的企业。

The beauty of mathematics lies not in its complexity but in its simplicity and the way it reveals hidden truths.

我不是一个活在过去的人。