We have said we must be fond of this world, even in order to change it. We now add that we must be fond of another world (real or imaginary) in order to have something to change it to….
As long as the vision of heaven is always changing, the vision of earth will be exactly the same. No ideal will remain long enough to be realized, or even partly realized. The modern young man will never change his environment; for he will always change his mind.
– G. K. Chesterton, Orthodoxy