举办奥运会意味着唤起历史。

The stock market is filled with individuals who know the price of everything, but the value of nothing.

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.

Innovation in fishing technology should focus on reducing bycatch, not just increasing catches.

"We are all in the gutter, but some of us are looking at the stars."