the Emperor had had to remember to avoid making commitments of substance, while freely applying the lotion of words without substance. - Isaac Asimov

There have been cases all through Galactic history where isolated planetary systems have reverted to savagery, and what have we learned there? In every case, such savages attribute the to-them-incomprehensible forces of Nature — storms, pestilences, droughts — to sentient beings more powerful and more arbitrary than men.

Δεν φοβάμαι τους ηλεκτρονικούς υπολογιστές. Φοβάμαι την έλλειψή τους.

Un robot es una máquina computerizada que es capaz de realizar un tipo de tareas que son demasiado complejas para cualquier mente viviente aparte de la del hombre, y de unas características que una máquina no-computerizada no es capaz de realizar.