Excerpt from The Principles of Courtesy IT is the design of this work to illustrate and enforce the duty of Christian courtesy. The author was induced to write it by observing that nearly all who have treated of manners, have inculcated pernicious opinions, appealed to unworthy motives, and taught a heartless and selfish system of polite ness. Much of their advice a Christian cannot too carefully shun. Without pretending to remarkable piety or surpassing refinement, or presuming to pronounce a beatitude on those who may regard his own suggestions, he cannot but heartily respond to the words of the royal Psalmist: Blessed is the man that walketh not in the counsel of the ungodly.