Being and Time raises the problem of "authenticity," that is, the potentiality or otherwise for mortal "Dasein" to exist "fully" enough that it might actually understand being. Heidegger is clear throughout the book that nothing makes certain that "Dasein" is capable of this understanding. Finally, this question of the authenticity of individual "Dasein" cannot be separated from the "historicality" of "Dasein". On the one hand, "Dasein", as mortal, is "stretched along" between birth and death, and thrown into its world, that is, thrown into its "possibilities", possibilities which "Dasein" is charged with the task of assuming. On the other hand, "Dasein's" access to
Nietzsche: Philosopher, Psychologist, Antichrist Nietzsche: Philosopher, Psychologist, Antichrist Nietzsche: Philosopher, Psychologist, Antichrist (1950; second edition 1956; third edition 1968; fourth edition 1974; fifth edition 2013) is a book about the German philosopher Friedrich Nietzsche by the philosopher Walter Kaufmann. The book, first published by Princeton University Press, was influential and is considered a classic study. Kaufmann has been credited with helping to transform Nietzsche's reputation after World War II by dissociating him from Nazism, and making it possible for Nietzsche to be taken seriously as a philosopher. However, he has been criticized for presenting Nietzsche as an existentialist, and for other details of his