"The anecdotes of modern astronomy affect me in the same way as do those faint revelations of the Real which are vouchsafed to men from time to time, or rather from eternity to eternity. When I remember the history of that faint light in our firmament which we call Venus, which ancient men regarded, and which most modern men still regard, as a bright spark attached to a hollow sphere revolving about our earth, but which we have discovered to be another world, in itself,—how Copernicus, reasoning long and patiently about the matter, predicted confidently concerning it, before yet the telescope had been invented,... and that within a century after his death the telescope was invented, and that prediction verified, by Galileo,—I am not without hope that we may, even here and now, obtain some accurate information concerning that OTHER WORLD which the instinct of mankind has so long predicted." ~ Henry David Thoreau (1817–1862)

Still my favorite.