The key to success is to get out into the store and listen to what the associates have to say. It's terribly important for everyone to get involved. Our best ideas come from clerks and stockboys.

你必须对自己有耐心，并相信这个过程。

数学的本质在于它的自由。

当今煤炭行业的领导力意味着在经济需求和环境责任之间找到微妙的平衡。

我是一个完美主义者，我对自己要求很严格。

The only thing that can make you a hero is your heart.

数学语言是通用的，超越了文化和语言的障碍。