The worst walls are never the ones you find in your way. The worst walls are the ones you put there- you build yourself. Those are the high ones, the thick ones, the ones with no doors in.
A person who believes ... that there is a whole of which one is a part, and that in being a part one is whole: such a person has no desire whatever, at any time, to play God. Only those who have denied their being yearn to play at it.