This work of Gianni Vattimo, father of weak thinking and one of the key figures of postmodernism, is divided into three parts. In the first, the author explains the reasons for his view of philosophical practice, but distances itself from science, not pursued at all resemble literature, sociology, culture, science or any other form of artistic expression with literary pretensions, the philosophy is "different" sciences (exact or nature) and the humanities or art precisely because it is deeply committed to and involved in the substantive issues involved in each of these sciences . Second, the author specifies the interpretation of the concept of truth, but rather than truth as adequacy speaks of "fidelity" to a being who is at all events, and a subject that is primarily dialogue (participation). Finally, the last section of text on liability, calling and destiny in philosophy provides us a key to understanding the stresses of contemporary philosophical practice between historical and theoretical, between journalists and philosophers philosophers-teachers, between specialization and philosophical mission of the philosopher as "official of humanity."