Definitions belong to the definers, not the defined.
定义属于下定义的人，而不属于被定义的人。
Don't let anyone dull your sparkle.
Innovation in mining technology isn't optional—it's our responsibility to the next generation.
The only fence against the world is a thorough knowledge of it.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
The lover's discourse is today of an extreme solitude.