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The challenge is not just to give people money but to understand how they make decisions under constraints.

數學的力量在于其抽象和概括的能力。

I have traveled so far to see the wonders of the world, but it is the people I have met along the way that have truly amazed me.

The universe is full of magical things patiently waiting for our wits to grow sharper.

最偉大的旅程是那些帶我們回到自己的旅程。

But there is only one thing which gathers people into seditious commotion, and that is oppression.