"When they try to convince you that earth is your home, notice how they set about it. They begin by trying to persuade you that earth can be made into heaven, thus giving a sop to your sense of exile in earth as it is. Next, they tell you that this fortunate event is still a good way off in the future, thus giving a sop to your knowledge that the fatherland is not here and now. Finally, lest your longing for the transtemporal should awake and spoil the whole affair, they use any rhetoric that comes to hand to keep out of your mind the recollection that even if all the happiness they promised could come to man on earth, yet still each generation would lose it by death...and the whole story would be nothing, not even a story, for ever and ever."
The Weight of Glory