经济学不仅仅是预测行为，更是塑造行为。
This is a group with many gifts. I'm sure one of your gifts is the gift of a smart and capable brain. I'm confident that's the case because admission is competitive and if there weren't some signs that you're clever， the dean of admission wouldn't have let you in.
La imaginación es el arma más poderosa contra la realidad.
登山不论遇到什么艰难险阻都不停止脚步，就一定能够登上山顶。