专家就是在非常狭窄的领域内犯过所有可能错误的人。
An expert is a person who has made all the mistakes that can be made in a very narrow field.
The most effective development interventions are often the simplest ones.
We don't compete with anyone but ourselves to be the best we can be.
Vote for the man who promises least; he'll be the least disappointing.
【大意】要想招引游鱼就得先通水，要想招引飞鸟就得先种树。
The world is built upon the power of numbers.
