Chapter 31 — Part III: The Decalogue — The Eighth Commandment
Section 20. This Commandment Forbids Flattery — Among the transgressors of this Commandment are to be numbered those fawners and sycophants who, by flattery and insincere praise, gain the hearing and good will of those whose favour, money, and honours they seek, calling good evil, and evil good, as the Prophet says. Such characters David admonishes us to repel and banish from our society. The just man, he says, shall correct me in mercy, and shall reprove me; but let not the oil of the sinner fatten my head. This class of persons do not, it is true, speak ill of their neighbour; but they greatly injure him, since by praising his sins they cause him to continue in vice to the end of his life.