[…] angels, as explained by Thomas Aquinas, are quite superior to time or space, yet can exert a local and material energy of superhuman kind. Like Superman, they require neither education nor experience, but they possess, without effort, flawless intelligence about all things. Men have dreamed of becoming like these beings for quite a while. However, fallen angels are known as devils. And imperfect men, possessing superhuman material power, are not a reassuring prospect.
Other quotes from Marshall McLuhan.