For man's superior part, his head, is turned towards the superior part of the world, and his inferior part is turned towards the inferior world
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic world
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17611/pg17611-images.html

Context

“Thus he would have a protruding mouth, with thick and hard lips, and also a hard tongue, so as to keep it from being hurt by exterior things; as we see in other animals. Moreover, such an attitude would quite hinder speech, which is reason's proper operation. Nevertheless, though of erect stature, man is far above plants. For man's superior part, his head, is turned towards the superior part of the world, and his inferior part is turned towards the inferior world; and therefore he is perfectly disposed as to the general situation of his body. Plants have the superior part turned towards the lower world, since their roots correspond to the mouth; and their inferior part towards the upper world.” source