Even private persons in due season, with discretion and temper, may reprove others, whom they observe to commit sin, or follow bad courses, out of charitable design, and with hope to reclaim them.
Bio: Martin E. P. "Marty" Seligman is an American psychologist, educator, and author of self-help books. Since the late 90's, Seligman has been an avid promoter within the scientific community for the field of positive psychology.