Keith Frankish in Aeon:
Great philosophy is not always easy. Some philosophers – Kant, Hegel, Heidegger – write in a way that seems almost perversely obscure. Others – Kierkegaard, Nietzsche, Wittgenstein – adopt an aphoristic style. Modern analytic philosophers can present their arguments in a compressed form that places heavy demands on the reader. Hence, there is ample scope for philosophers to interpret the work of their predecessors. These interpretationscan become classics in their own right. While not all philosophers write obscurely (eg, Hume, Schopenhauer, Russell), many do. One might get the impression that obscurity is a virtue in philosophy, a mark of a certain kind of greatness – but I’m skeptical.