I've learned that you have to be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.
成功不是终点,失败也不是致命的:重要的是继续前进的勇气。
可持续性不是一种选择,而是长期成功的必要条件。
救灾建筑必须足够简单,让灾民能够自己建造。
The highest form of theory is the ability to simplify complex things into simple and clear principles.