Nihilism - Nihilism in Philosophy
Though the term nihilism was first popularized by Ivan Turgenev (see below), it was first introduced into philosophical discourse by Friedrich Heinrich Jacobi (1743–1819), who used the term to characterize rationalism, and in particular Immanuel Kant's "critical" philosophy in order to carry out a reductio ad absurdum according to which all rationalism (philosophy as criticism) reduces to nihilism, and thus it should be avoided and replaced with a return to some type of faith and revelation. (See also fideism.)
Friedrich Nietzsche's later work displays a preoccupation with nihilism. Book One of the posthumous collection The Will to Power (a highly selective arrangement of jottings from various notebooks and from a surceased project began by Nietzsche himself, then released by his sister, Elisabeth Förster-Nietzsche) is entitled "European Nihilism" which he calls "the problem of the nineteenth century." Nietzsche characterized nihilism as emptying the world and especially human existence of meaning, purpose, comprehensible truth, or essential value.
Though some deride it as nihilistic, postmodernism can be contrasted with the above formulation of nihilism in that nihilism tends toward defeatism or fatalism, while postmodern philosophers tend to find strength and reason for celebration in the varied and unique human relationships it explores. Nihilism can also readily be compared to skepticism as both reject claims to knowledge and truth, though skepticism does not necessarily come to any conclusions about the reality of moral concepts nor does it deal so intimately with questions about the meaning of an existence without knowable truth.
In a very different vein than just given, contemporary analytic philosophers have been engaged in a very active discussion over the past few years about what is called Mereological Nihilism (but it is nowadays usually just