The Master created humans first as the lowest type, most easily formed. Gradually, he replaced them by robots, the next higher step, and finally he c… - Isaac Asimov

Lamentarsi è una caratteristica innata della specie umana. Nel Secolo del Carbone la gente imprecava contro la macchina a vapore; in una commedia di Shakespeare un personaggio lamenta l'invenzione della polvere da sparo. Mille anni dopo ci si lamentava per la fabbricazione del cervello positronico.

Goodbye, Hari, my love. Remember always — all you did for me.”

-I did nothing for you.”

-You loved me and your love made me — human.

Bogert's face was bloodless, 'He's dead!' 'No!' Susan Calvin burst into body-racking gusts of wild laughter, 'not dead — merely insane. I confronted him with the insoluble dilemma, and he broke down. You can scrap him now — because he'll never speak again.