A good mathematician is not one who knows all the answers, but one who asks the right questions.

Sustainability is no longer an option—it's a necessity for any business that wants to thrive in the future.

I’m not a guy that’s going to let my love for the effort down.

To be free is not to have no master, but to choose your own.

I'm LeBron James. From Akron, Ohio. From the inner city. I'm not even supposed to be here.

I think I'm afraid to be happy...because whenever I get too happy, something bad always happens.

教育是富有时的饰品，穷乏时的避难所。