Aside from a basically serious point of view, there are two other fundamental approaches to dramatic material: comedy and tragicomedy. Comedy looks at the world with a smile or a deep laugh or an arched eyebrow, revealing the follies and excesses of human behavior, and reveling in a sense of the ridiculousness of life. Comedy is based on several principles, including the suspension of natural laws, the contrast between the social order and the individual, and the comic premise that turns the accepted notion of things upside down. These principles are given life through verbal humor, comedy of character, and plot complications. Comedy takes various forms, including farce, burlesque, satire, domestic comedy, comedy of manners, and comedy of ideas. In the twentieth century, tragicomedy has come to the fore in theater. In tragicomedy, the point of view is mixed, a synthesis of the comic and the serious. While many playwrights of the past, including Shakespeare, have written in the tragicomic vein, it is in the modern period that tragicomedy has become a predominant form. Playwrights such as Anton Chekhov, as well as the playwrights of theater of the absurd, all have adopted this viewpoint as their own.