As soon as one is unhappy, one becomes moral.

All our final decisions are made in a state of mind that is not going to last.

oda população do Universo, com uma insignificante exceção, é composta dos demais.

A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.

A robot may not injure humanity, or, through inaction, allow humanity to come to harm.

Gracious to all, to none subservient, Without offense he spoke the word he meant.

Universo não é nem hostil nem amigável. É simplesmente indiferente.

And thou wilt give thyself relief, if thou doest every act of thy life as if it were the last.