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 best buildings come from a strong concept.

I want to leave a mark in the music industry.

权力的下颚总是张开着要吞噬，如果可能的话，她的手臂总是伸出来，以摧毁思想、言论和写作的自由。

永远对你所拥有的心怀感激。

Sustainable energy solutions will define the 21st century.