Does ancient Philosophy still speak to us today I would disagree that Freud " has been supplanted" . The fact is that he is regarded as an intellectual giant of the 20th century and has had an enormous influence not only in psychology but in literature, Philosophy, sociology and so on. Jung who has arguably become more fashionable nowadays judging from the number of videos about him on YouTube was actually heavily influenced by Freud and psychoanalysis although not as popular as CBT nowadays still is very influential in modern culture. In my opinion the weakness in ancient Greek philosophy including the Stoics is their hierarchical view of reason versus the emotions placing reason as somehow in a superior rank to the emotions. This is a big mistake. Eastern Philosophy is very different. It has much less emphasis on reason. And modern psychology bears this out , namely the equal importance of emotions and reason. In my opinion the Greek thinkers worship of reason had detrimental consequences for the history of western thought. The Church for centuries up until the 19th century used Aristotles and Plato's Philosophy to back up their dogma and their conservative repressive thinking which was only overcome when modern radical thinkers overthrew the enormous influence of Aristotle and Plato's thought in the west