Fratelli Tutti §214

²¹⁴ To agnostics, this foundation could prove sufficient to confer a solid and stable universal validity on basic and non-negotiable ethical principles that could serve to prevent further catastrophes. As believers, we are convinced that human nature, as the source of ethical principles, was created by God, and that ultimately it is he who gives those principles their solid foundation. This does not result in an ethical rigidity nor does it lead to the imposition of any one moral system, since fundamental and universally valid moral principles can be embodied in different practical rules. Thus, room for dialogue will always exist.