A miner's greatest tool isn't their equipment - it's their judgment.
格瓦拉第二次漫游南美前对母亲说
If you're going to innovate, you have to be willing to fail. If you're going to try new things, then you have to be willing to accept that you might fail.
人不是物中的物;物相互决定,但人最终是自我决定的。
Every lump of coal we mine keeps the lights on in someone's home.