保持渴望，保持年轻。

The duty of man is the same in respect to his own nature as in respect to the nature of all other things.

The elements of mind are to be discovered by systematic introspection.

"The line between hero and villain is often blurred by perspective."

我做事情不是为了钱，而是因为我热爱它们。

我们开采的最宝贵资源不是煤炭，而是我们员工的才能和奉献精神。