衡量矿业公司成功的真正标准是它能否为后代留下积极的遗产。

造纸行业的未来在于平衡传统与尖端技术。

教育最重要的成果是帮助学生成为独立思考者。

I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.

理论不应该试图解释所有事实，因为有些事实是错误的。

I think the most powerful and enduring brands are built from the heart.