I’m not here to be second place.

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.

The next generation of aquaculture leaders must think beyond the cage.

Every new planet we find is a step closer to answering the age-old question: Are we alone in the universe?

The liberal democratic system may not be perfect, but it is the best system we have.

Pleasures， then， and the avoidance of pains， are the ends that the legislator has in view.

The past is a kind of future that has already happened.

交易成功的关键在于情绪纪律。如果智力是关键，那么会有更多的人通过交易赚钱。

在严冬之中，我发现，在我心中，有一个不可战胜的夏天。