The peculiar evil of silencing the expression of an opinion is that it is robbing the human race； posterity as well as the existing generation； those who dissent from the opinion， still more than those who hold it.

"Success is not about money. It's about the difference you make in people's lives."

文化是一个群体在解决外部适应和内部整合问题的过程中逐渐习得的东西。

那些把别人当作不如人类的人，当他们投在水面上的面包毒化后漂回来时，不应感到惊讶。

可持续性不是一种趋势，而是我们对下一代的责任。