The caste system, if interpreted as a system of psychological types, is all too well founded. Much can be said about the number of types, their characteristics and their predominance, or not, in this or that society. What cannot be doubted is the existence of men with such different motivations and predispositions that, even if they are born and live on the same soil, they do not understand each other very much. This is why it will always be impossible to establish a model of life that everyone should strive for: the ideal for some is failure and death for others.