我很肯定，100年后，我们今天认为是正确无误的事情，很多都会被证明是错误的，甚至可能是令人尴尬的错误，我非常努力地去寻找我今天错在哪里。

Sustainability isn't just about planting trees—it's about planting the right trees in the right places, for the right reasons.

Democracy must be born anew every generation, and education is its midwife.

只要对国家有利，即使牺牲生命也心甘情愿，绝不会因为自己可能受到祸害而躲开。

奶牛养殖既是一门艺术也是一门科学——尊重两者对于成功至关重要。