https://en.wiktionary.org/wiki/render_unto_Caesar_the_things_which_are_Caesar%27s https://en.wiktionary.org/wiki/render_unto_Caesar_the_things... While sourced

https://en.wiktionary.org/wiki/render_unto_Caesar_the_things_which_are_Caesar%27s https://en.wiktionary.org/wiki/render_unto_Caesar_the_things... While sourced from the Bible, it has a secular-enough meaning that I wouldn't stress it.