From the 1950s onwards, people gradually started to turn against psychoanalysis and question it. And there was a proliferation of other approaches to psychotherapy. Ober Ellis who had been a psychoanalytic therapist in New York ripped up all these books and decided to start again from scratch. He read Marcus Aurelius and Epictetus, not so much Seneca, interestingly. It seemed relevant because it was more down to air and I realised it was the inspiration for cognitive therapy.