MICHAUD, Michael - Contact with Alien Civilizations
"Over the millennia, our thinking about extraterrestrials has evolved from metaphysical speculation to scientifically testable hypotheses. Yet we still have no proof. At the philosophical and scientific levels, the most durable feature of the controversy has been the split between “Copernicans,” who argue that Humankind does not occupy a special place in the universe, and “Aristotelians,” who believe that we do. During the Enlightenment, philosophical speculations wrestled with another fundamental question. If there are intelligent beings beyond the Earth, some of them might be more intellectually advanced than we are. How, then, could Man be the measure of all things?"