It is an odd thing, that people frequently mention something I have said forty days or forty years ago that has stuck with them and shaped their thinking on the subject. This is gratifying, certainly. However, it is unusual for me to persuade anyone of anything, to change their mind. I attribute the former to some strength of reasoning, observation, or phrasing, and the latter to some deficit of personality.
I do know that it is unusual for anyone to change their minds on anything, and that this likely influences my perception. Still, there it is.
Sumus quod sumus.