“Roger Bacon, whom I venerate as my master, teaches that the divine plan will one day encompass the science of machines, which is natural and healthy magic. And one day it will be possible, by exploiting the power of nature, to create instruments of navigation by which ships will proceed unico homine regente, and far more rapid than those propelled by sails or oars; and there will be wagons that move without animals to pull them, and flying vehicles guided by a man who will flap their wings as if they were those of a bird. And tiny contraptions that lift infinite weights, and small boats that
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