Leadership is about making others better as a result of your presence, and making sure that impact lasts in your absence.

The elegance of a mathematical proof is in its simplicity and clarity.

采矿业的未来在于创新和负责任的资源管理。

光线不断变化，每分钟都在改变事物的氛围和美感。

胜利会带来仇恨，被击败者生活在痛苦之中。和平的人放弃胜败。