@krnel a very interesting topic, I mean, an affirmation is true if it matches the way the world really is. This is the common definition of the truth that we all know, it is only when it comes to moral truth that people change the definition, sometimes the human being instead of basing decisions on "what is right," the decisions are based in self-interest. When self-interest governs, this has a profound impact on behavior, especially how we treat other human beings. The notion of human dignity depends on the existence of objective moral truths.