As you grow older, you will discover that you have two hands, one for helping yourself, the other for helping others.
我了解到失败不是成功的对立面,而是成功的一部分。
数学不仅仅是人类的发明;它具有一种独立于我们而存在的深刻现实。
The future belongs to those who dare to dream and act.
The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.