解释：只要有一人起表率作用，就能带动其他人效仿。一个人的行为和言行影响着他人的行为和态度。

经济学的目标是理解如何以最高效的方式分配稀缺资源。

Internationalization is not simple replication, but localized innovation.

I was not born blind, I became blind at the age of 12. So I have seen the world and I know what things look like. When I sing about love and pain, joy and sadness, I know what I'm singing about.

I had ambition not only to go farther than any man had been before, but as far as it was possible for a man to go.