The moralistic approach is a tendency in literary criticism to judge works based on moral rather than formal principles, evaluating works based on their ethical teachings and effects on readers. Literature that encourages virtue is praised, while literature that misguides or corrupts is condemned. Several influential critics throughout history have taken a moralistic approach, including Plato banning poets from his Republic for fear of spreading immorality, and Dr. Johnson attacking Shakespeare for his slipshod treatment of moral values. The humanist movement of the Renaissance also emphasized order, restraint, discipline and the study of classical works to produce cultural rebirth.