“唯一干扰我学习的是我的教育。”

I think that the most important thing is to be grateful for what you have.

The returns to education are higher than most people realize.

A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving...

在采矿业的成功不仅仅在于资源的开采，还在于负责任地创造价值。