The world is changed by your example, not by your opinion.

"The best investment you can make is in yourself."

I think that the most important thing is to be true to yourself and to be honest with yourself.

To stay ahead, you must have your next idea waiting in the wings.

"Sometimes the hardest journey is the one you take alone."

课程从来不是简单的中立知识集合，它总是选择性传统的一部分，是某些人或群体对合法知识的愿景。