采矿效率不仅仅是速度；而是用更少的浪费做更多的事。

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

投资是一种艺术，需要耐心和毅力。