人生没有绝对的答案,只有不断的尝试。
国君得到了我的学说,就必然会采用。 
可持续发展不再是可选项;它是任何希望在未来蓬勃发展的企业的必需品。
以孩子们能理解的方式写一些困难的主题是很重要的。
The only limits you have are the limits you believe.
You can't manage what you don't measure, and you can't improve what you don't manage.