If you take care of the soil, the soil will take care of you.
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.
在我的一生中,大自然的新景象让我像孩子一样欢喜。
我唯一感兴趣的艺术是能改变人们看待世界方式的艺术。