world, and oppose it in every step, by giving perpetual warning and instruction to mankind; which, added to the strong influence of our own example, would probably prevent that continual degeneracy of human nature so justly complained of in all ages.

“Add to this, the pleasure of seeing the various revolutions of states and empires; the changes in the lower and upper world; ancient cities in ruins, and obscure villages become the seats of kings; famous rivers lessening into shallow brooks; the ocean leaving one coast dry, and overwhelming another; the discovery of many countries yet unknown; barbarity overrunning the politest nations, and the most barbarous become civilized. I should then see the discovery of the longitude, the perpetual motion, the universal medicine, and many other great inventions, brought to the utmost perfection.