The dead are always looking down on us, they say. But we don't look back.
人们说逝者总是在俯视着我们。但我们从不回望。
通往地狱的路是由未完成的作品铺成的。
The beauty of mathematics lies in its simplicity and depth.
You can't run a business, or anything, on a theory.
如果你不能飞，那就跑；如果你不能跑，那就走；如果你不能走，那就爬。但无论怎样，你必须继续前进。