One of the great pleasures of working as a chaplain in a rigorous college prep environment is that I get to work with young leaders who really think they have a shot at changing the world. They have a kind of "childlike faith" in the possibility of making the world a better place, and a wonderful naivety about their own capacity to bring about that change.
They have been told repeatedly that the sky is the limit, and they can do anything they put their mind to, if they will just work hard enough. And most of them have not had enough experience with the world yet, to have that beat out of them by life's hard knocks, or slowly drained out of them by life's compromises.
Do you remember what it was like to have that kind of childlike faith that you could change the world? Before you "grew up" and repeatedly failed the same failures, fought the same fights, and argued the same arguments, over and over and over again. Jesus repeatedly praised childlike faith, saying that it was necessary if we wanted to enter into the Kingdom of God.