Whether the law of nature can be abolished from the heart of man?

Objections

Objection 1 : It would seem that the natural law can be abolished from the heart of man. Because on Rm. 2:14, "When the Gentiles who have not the law," etc. a gloss says that "the law of righteousness, which sin had blotted out, is graven on the heart of man when he is restored by grace." But the law of righteousness is the law of nature. Therefore the law of nature can be blotted out.
Objection 2 : Further, the law of grace is more efficacious than the law of nature. But the law of grace is blotted out by sin. Much more therefore can the law of nature be blotted out.
Objection 3 : Further, that which is established by law is made just. But many things are enacted by men, which are contrary to the law of nature. Therefore the law of nature can be abolished from the heart of man.