You are not stuck where you are unless you decide to be.

The power of technology lies in its ability to connect people and ideas.

每一分都很重要，你必须为每一分而战。

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.