Responsible mining is not an option, it's an obligation we owe to our planet and future generations.
事实并不能自证清白。它们支持或者反对不同的理论。而脱离理论或者信念的事实不过是孤立的好奇心而已。
Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job, buy the very best you can afford.
True leadership is measured by how you lift others up, not how high you climb.