Steve felt that most people live in a small box. They think they can’t influence or change things a lot. I think he would probably call that a limited life. And more than anybody I’ve ever met, Steve never accepted that.

He got each of us [his top executives] to reject that philosophy. If you can do that, then you can change things. If you embrace that the things that you can do are limitless, you can put your ding in the universe. You can change the world. — Tim Cook

via Tim Cook On Apple's Future: Everything Can Change Except Values | Fast Company | Business + Innovation.