You were correct. nostr:npub1cm87c625x3tzqu2qzf7e845749k58u7xvx2gc8ym0wmg9sytwwuqdrzwm4
"That which is not compulsory is also pleasant, for compulsion is contrary to nature. That is why what is necessary is painful, and it was rightly said, “ For every act of necessity is disagreeable."
He uses necessary and involuntary interchangeably.