As if the species in every individual were on guard against letting himself go too far along the road of tolerance, intelligent doubt, sentimental vacillation. At some given point the callus, the sclerosis, the definition is born: black or white, radical or conservative, homo- or heterosexual, the San Lorenzo team or the Boca Juniors, meat or vegetables, business or poetry.
Rayuela (Hopscotch) (1963)