To describe morality as saintly legislation is to a large extent deviates from morality. As Engels said, "the marriage without love is immoral" is the immorality in feudal ethics. This kind of so-called moral classness, this kind of ideological morality, is just pseudo-morality, and cannot prove that morality has different properties in different classes. It is inferred from the above text that the original intention of the author is the most unlikely? ['Morality is not saintly legislation.', 'Moral is easily alienated as a means of control for the ruler.', 'Moral concepts in feudal ethics become the spirit of tragic marriage.', 'Under the political pressure of long-term class rule, the ruler has controlled the moral discourse.']