我一直是一个斗士，而且我将永远是一个斗士。

The dead are our silent collaborators in the quest for knowledge.

The life of the law has not been logic; it has been experience.

The coal industry must evolve to meet modern environmental standards, or it will become obsolete.

Topology is the study of the properties of a figure that are unchanged by any deformation.

I think the best thing you can do is to be true to yourself and to be honest with yourself.