Quia homo naturaliter est animal sociale, utpote qui indiget ad suam vitam multis, quae sibi ipse solus praeparare non potest; consequens est, quod homo naturaliter sit pars alicuius multitudinis, per quam praestetur sibi auxilium ad bene vivendum.
"Because man is naturally a social animal, seeing that he needs many things for his life that he himself alone is not able to prepare, it follows that man is naturally a part of some multitude, through which he receives help for living well."
Sententia libri Ethicorum lib. 1 lect. 1 n. 4
