在糟糕的时候抱有希望不仅仅是愚蠢的浪漫。这是基于人类历史不仅是残酷的历史，也是同情、牺牲、勇气和善良的历史。
"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
对森林最大的威胁不是采伐，而是漠不关心。
Leadership is about empowering others to achieve what they thought was impossible.
善于教导的人必须遇到善于学习的人，才能使教育的效果更大。
"History is not the past—it is the method we have evolved of organizing our ignorance of the past."
我写的每首歌都像是我的孩子。我培养它，我爱它，我把它送到世界上，希望它能找到自己的路。