Free vaccines are more valuable than expensive treatments, yet harder to promote.

一切变化都遵循法则。

We are all born mad. Some remain so.

We don't make objects, we make places.

【译文】 孔子说：“君子心怀仁义，小人心怀财利。”

You have to believe in yourself when no one else does—that's what makes you a winner.

最好的商业模式往往是最简单的。