A proof is a device for convincing someone else that a mathematical statement is true.

I’m going to use all my tools, my God-given ability, and make the best life I can with it.

The past is not dead. It is not even past.

为了对抗永恒的不公，人类必须伸张正义，为了对抗宇宙的悲伤，人类必须创造幸福。

衡量矿业公司成功的真正标准是其如何平衡利润与环境责任。