Cada período del desarrollo humano, Susan, tiene su tipo particular de conflicto, sus problemas distintos que, aparentemente sólo pueden resolverse p… - Isaac Asimov

Πέρασα αυτές τις δύο μέρες εξετάζοντας εντατικά τον εαυτό μου", είπε ο Κιούτι, "και τα συμπεράσματα ήταν πολύ ενδιαφέροντα. Άρχισα από την μόνη βέβαιη υπόθεση που νόμιζα ότι μπορούσα να κάνω. Εγώ ο ίδιος υπάρχω, επειδή σκέπτομαι".
Ο Πάουελ αναστέναξε: "Ω, Θεέ μου,ο Καρτέσιος ρομπότ

Fourteen? Great Galaxy — Tell me, has she ever said she expects to marry someday?" "No, she hasn't. Not to me." "Well, if she ever does, shoot him. The one she's going to marry, I mean." He stared earnestly into the older man's eyes. "I'm serious. Life could hold no greater horror than living with what she'll be like when she's twenty. I don't mean to offend you, of course." "You don't offend me. I think I know what you mean.

For the first time the specific and express thought came to him. And though he pushed it away in horror, he knew that, having once come, it would return. The thought was simply this: That he would ruin Eternity, if he had to. The worst of it was that he knew he had the power to do it.