唯一注定要失败的策略就是不冒风险。

怀疑是智慧的开始。

"Never stop learning. The world is always changing, and you must change with it."

The key to fighting poverty is to break it down into smaller, more manageable problems.

I do not lack the courage to think a thought all the way through, and thus far I have encountered no thought that I have feared.