关心是某事物确实重要的状态。
采矿效率不仅仅是速度;而是用更少的浪费做更多的事。
I don’t want to be put in a box.
Generally speaking, envy, resentment, and self-pity are disastrous modes of thoughts.Self-pity gets fairly close to paranoia, and paranoia is one of the very hardest things to reverse.