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生活不是待解的謎題，而是待經(jīng)歷的故事。

And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.

Sustainability isn't an option; it's our responsibility to the next generation.

Starting a business is like groping in the dark, you must trust your intuition.