English playwright and poet are recognized as the greatest of all dramatists. Shakespeare's plays communicate an intellectual knowledge of the wellsprings of human behavior, brought to light through portrayal of a wide variety of characters. His use of poetic and dramatic approach to create a unified pleasing effect out of a multiplicity of vocal expressions and actions is recognized as an achievement. His use of poetry within his plays to express the deepest levels of human motivation in individual, social, and universal situations is taken into account as one of the greatest achievements in literary history.