Imagine a philosophy book with the ghastly title: The Last Philosophy Book You’ll Ever Need. The title is ghastly because it isn’t the last philosophy book that you’ll ever need. Philosophy is not a destination; it is a never-ending process of arguments and counterarguments, propositions and refutations; it is marked by chaos, conflict, and detours which result in unexpected theories. But modern philosophers have been motivated by the ambition of writing the last philosophy book that humans will ever need. The Enlightenment philosophes wanted to write it; Hegel was convinced that he had written it, so were Marx and Auguste Comte; the twentieth-century figures like Wittgenstein, the logical positivists, and the analytic philosophers wanted to write it, while Jean-Paul Sartre was convinced that he had written it.