We ought to follow GR because an ideal observer would desire this.
We ought to follow GR because an ideal observer would desire this.
We have a basic prima facie duty to treat others as we want to be treated. <=> prima-facie-duty justification
We ought to follow GR because an ideal observer would desire this.
GR is justified because it can help us to live together more harmoniously and thus can make life better for everyone. So GR is a useful rule for promoting the good of society. <=> utilitarianism justification
We ought to follow GR because an ideal observer would desire this.
We ought to follow GR because society demands this (perhaps for the sake of its own survival). <=> cultural-relativism justification
We ought to follow GR because an ideal observer would desire this.
We ought to follow GR because an ideal observer would desire this. <=> ideal-observer-theory justification
We ought to follow GR because an ideal observer would desire this.
Our judgment in favor of GR expresses (our actual or ideal) feelings in favor of it. <=> emotivism justification