环保是我们不可推卸的责任，在开采过程中必须注重生态保护，实现可持续发展。

You have to be humble and accept that sometimes you will lose.

I like crossing the imaginary boundaries people like to draw between scientific fields.

For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.

Financial regulation must keep up with market changes but avoid excessive intervention.