The moment you doubt whether you can fly, you cease forever to be able to do it.

【释义】手里端着多大的碗，就吃多少分量的饭，不贪多逾矩。

The stock market is a giant distraction to the business of investing.

最成功的现代国家是那些能够将强大的国家与法治和民主问责制结合起来的国家。