What Are The Pros and Cons of Lying? What are the possible advantages of not always being completely candid and truthful? Are there some reasons for lying, some of which may be more acceptable than others? Is it possible that our close relationships could not work without some degree of deception? Could any relationship withstand "the truth, and nothing, but the truth?" Whether we like it or not, it appears that our relationships are held together, not only by telling the truth, but by also telling an occasional lie.