Honesty can force any dysfunction in your life to the surface. Are you in an abusive relationship? A refusal to lie to others—How did you get that bruise?—would oblige you to come to grips with this situation very quickly. Do you have a problem with drugs or alcohol? Lying is the lifeblood of addiction. If we have no recourse to lies, our lives can unravel only so far without others’ noticing.

