1. Agostino. (2003). Le confessioni [Confessions]. Rizzoli.
2. Neural reuse: A fundamental organizational principle of the brain
3. Aristotle. (1968). La fisica [The physics]. Laterza.
4. Bergson, H. (1988). Essai sur les donnès immediates de la conscience [An essay on the immediate data of consciousness]. Presses Universitaire de France.
5. Berne E. (1971). Analisi transazionale e psicoterapia: Un sistema di psichiatria sociale e individuale [Transactional analysis in psychotherapy: A systematic individual and social psychiatry]. Astrolabio. (Original work published 1961)