Success? I don't know what that word means. I'm happy. But success, that goes back to what in somebody's eyes success means. For me, success is inner peace. That's a good day for me.

Coal miners don't just dig in the dirt, they dig for progress.

想象力比知识更重要。知识是有限的，而想象力则环绕着世界。

薪柴会烧完，火种却传下去，不会穷尽。