In philosophy, temporality is traditionally the linear progression of past, present, and future. However, some modern-century philosophers have interpreted temporality in ways other than this linear manner. Examples would be McTaggart's The Unreality of Time, Husserl's analysis of internal time consciousness, Martin Heidegger's Being and Time (1927), George Herbert Mead's Philosophy of the Present (1932), and Jacques Derrida's criticisms of Husserl's analysis, as well as Nietzsche's eternal return of the same, though this latter pertains more to historicity, to which temporality gives rise.