The world is constantly changing. You're constantly learning and you have to be willing to get off your mark, and get off your spot and take that knowledge you have not to fix yourself into a place but to keep going.
And as we are - the world is. That is, if we are greedy, envious, competitive, our society will be competitive, envious, greedy, which brings misery and war. The State is what we are.
Now he found out a new thing--namely, that to promise not to do a thing is the surest way in the world to make a body want to go and do that very thing.