How strange and wonderful is our home, our earth, with its swirling vaporous atmosphere, its flowing and frozen liquids, its trembling plants, its creeping, crawling, climbing creatures, the croaking things with wings that hang on rocks and soar through fog, the furry grass, the scaly seas. To see our world as a space traveler might see it, for the first time, through Venusian eyes or Martian antennae, how utterly rich and wild it would seem, how far beyond the power of the craziest, spaced-out, acid-headed imagination, even a god’s, even God’s, to conjure up from nothing. Yet some among us have the nerve, the insolence, the brass, the gall to whine about the limitations of our earthbound fate and yearn for some more perfect world beyond the sky. We are none of us good enough for the sweet earth we have, and yet we dream of heaven.