Catholic theology of sexuality, like Catholic theology in general, is drawn from natural law, canonical scripture, divine revelation, and sacred tradition, as interpreted authoritatively by the magisterium of the Catholic Church. Sexual morality evaluates sexual behavior according to standards laid out by Catholic moral theology, and often provides general principles by which Catholics are able to evaluate whether specific actions meet these standards. Much of the Church's detailed doctrines derive from the principle that "sexual pleasure is morally disordered when sought for itself, isolated from its procreative and unitive [between spouses] purposes".