Before Freud there was Schopenhauer (1788-1860)

".....Two of the most important ideas that are generally credited to Freud had been spelled out fully by Schopenhauer before Freud was born. One was the notion of the Unconscious; not just the concept itself but an extended argument about it which Freud repeated. The argument is that most of our motivation is unconscious to ourselves; that the reason why it is unconscious is that it is repressed; the reason why it is repressed is that we do not want to confront it; the reason why we do not want to confront it is that it is incompatible with the view of ourselves which we wish to maintain; and therefore a great deal of motivated energy goes into either keeping it repressed or allowing it to surface only after it has been cleaned up and made falsely presentable to our conscious minds. This argument is the core of Freudianism........The second seminal idea .......in which Freud was clearly preceded by Schopenhauer is that of the omnipresence of sexual motivation. Schopenhauer argued that sexual motivation comes into almost everything....."

Again, from "The Great Philosophers"
by Bryan Magee, pp: 228-229.