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
William Wallace (philosopher) Sciences". It was still regarded as "the most masterly and influential of all English translations of Hegel" when it was republished in 1975. The translation was accomplished in a free and creative style accompanied by extensive explanatory notes on the text, drawing parallels between the philosophy of Hegel and classical figures such as Plato and Aristotle. He published "Epicurean Philosophy" in 1880, tracing the origins of Epicureanism and highlighting the links between the life of Epicurus and the philosophy that he espoused. Wallace's "Kant" (1882), part of Blackwood's Philosophical Classics series, portrayed the German philosopher as engaged in a dialogue