"there is no 'nature' in things that are not manufactured and artificial."

"If one were to compare the thought of Sartre and St. Thomas and reduce both to syllogistic form, one would realize that both start with the same 'major premise,' namely from this principle:  things have an essential nature only in so far as they are fashioned by thought.  Since man exists and has a constructive intellect, which can invent and has in fact invented, for instance, a letter opener, therefore, and for no other reason, we can speak of the 'nature' of a letter opener.  Then, Sartre continues, because there exists no creative intelligence which could have designed man and all natural things—and could have put an inner significance into them—therefore there is no 'nature' in things that are not manufactured and artificial. . . . St. Thomas, on the contrary, declares:  Because and in so far as God has creatively thought things, just so and to that extent have they a nature."

     Josef Pieper, Silence of St. Thomas, 53-53, as quoted by Michele M. Schumacher, "Gender ideology and the 'artistic' fabrication of human sex:  nature as norm or the remaking of the human?," The Thomist:  a speculative quarterly review 80, no. 3 (July 2016):  403-404 (363-423), underscoring mine.