 Since Aquinas thinks that the existence and providence of God, as the transcendent source of all persons and benefits, is certain, his usual statement of the master moral principle affirms that one should love God and one’s-neighbor-as-oneself. But since he accepts that the existence of God is not self-evident, he can allow that the more strictly self-evident form of the master moral principle refers only to love of human persons (self and neighbors). He would add that, once the existence and nature of God is accepted, as it philosophically should be, the rational requirement of loving God, and thus the fuller version of the master moral principle, is self-evident. He also holds that one does not offend against this requirement of loving God except by making choices contrary to human good, that is, to love of self or neighbor: ScG III c. 122 n. 2.