"In the end, we are all alone with our choices."

My stomach is a knot of sorrow and anger, but I keep smiling.

True leadership is not about being in charge, but about taking care of those in your charge.

Pride relates more to our opinion of ourselves, vanity to what we would have others think of us.

量子力学不仅仅是一个关于世界的理论，它是对世界最基本层面的描述。

The only limit to our realization of tomorrow will be our doubts of today.

每一栋建筑都是原型，没有两栋是完全相同的。