“The two fundamental human heresies, the two banes of modern philosophy, are animalism and angelism. Man has lost his place in the cosmos, the place between angel and beast. Chesterton says, describing St. Thomas’ philosophy of man, that ‘man is not like a balloon, floating free in the sky, nor like a mole, burrowing in the earth, but like a tree, with its roots firmly planted in the earth and its branches reaching up into the heavens.’
[…] The two most life-changing revolutions in modern times were the scientific-industrial revolution, which taught man to live and think abstractly, like an angel; and the sexual revolutions, which taught man to live and think like an animal. The first knows only the head, the second knows only the hormones. Neither knows the heart.
[…] Man does not know himself because he does not know his place in the cosmos; he confuses himself with the angel or animal. He is alienated, ‘lost in the cosmos.’ ”
(Peter Kreeft, Christianity for Modern Pagans, pp.52-53)
The most amazing truth of Christian theology is that it reveals what it is to be human. As we come to know God through God’s saving actions on earth, we come to know what a human being is and what it means to be human.