Introduction: Searching in our POLIS for LOGOS, ETHOS and TECHNE
The 9th edition of the journal "Systemic Thinking and Psychotherapy" is dedicated to the 9th European Congress of the European Family Therapy Association (EFTA), entitled “Origins and Originality in Family Therapy and Systemic Practice"and held in Athens, from 28 September to 1 October, 2016. The program was built upon Aristotle’s philosophy of Polis, Logos, Ethos and Techne. All articles in this issue are based on the authors’ presentations at the conference.