如果易用性是唯一的要求，那么每个人都会还在骑三轮车。
If ease of use was the only requirement, everyone would still be riding tricycles.
简洁是可靠性的前提。
Money and success don't change people, they merely amplify what is already there.
The road to success is always under construction.
真相并不总是美丽的，但它总是必要的。
Understanding the real lives of the poor is the first step toward designing effective policies to help them.
