You have to believe in yourself when no one else does.

每一个人都有自己的星星，但其中的含意却因人而异。对旅人而言，星星是向导；对其他人而言，它们只不过是天际中闪闪发光的小东西而已；对学者而言，星星则是一门待解的难题；对我那位商人来说，它们就是财富。

We must balance the need for energy today with the imperative of protecting the planet for tomorrow.

"Psychology should measure the mind by its outcomes."

劳动分工在尽可能程度上引入，在每一门艺术中都会导致劳动生产力的相应增加。