Whether the natural law contains several precepts, or only one?
Objections
❌ Objection 1 : It would seem that the natural law contains, not several precepts, but one only. For law is a kind of precept, as stated above (Question [92], Article [2]). If therefore there were many precepts of the natural law, it would follow that there are also many natural laws.
❌ Objection 2 : Further, the natural law is consequent to human nature. But human nature, as a whole, is one; though, as to its parts, it is manifold. Therefore, either there is but one precept of the law of nature, on account of the unity of nature as a whole; or there are many, by reason of the number of parts of human nature. The result would be that even things relating to the inclination of the concupiscible faculty belong to the natural law.
❌ Objection 3 : Further, law is something pertaining to reason, as stated above (Question [90], Article [1]). Now reason is but one in man. Therefore there is only one precept of the natural law.