He was well aware that of the two of three thousand times he had made love (how many times had he made love in his life?) only two or three were really essential and unforgettable. The rest were mere echoes, imitations, repetitions, or reminiscences.
Milan KunderaThe serial number of a human specimen is the face, that accidental and unrepeatable combination of features. It reflects neither character nor soul, nor what we call the self. The face is only the serial number of a specimen
Milan Kundera