Yo intento enseñar porque, consiga o no instruir a otros, consigo infaliblemente instruirme a mí mismo. - Isaac Asimov

Books, gentlemen, hold within them the gathered wisdom of humanity, the collected knowledge of the world's thinkers, the amusement and excitement built up by the imaginations of brilliant people. Books contain humor, beauty, wit, emotion, thought, and, indeed, all of life. Life without books is empty.

Halsted muttered, 'These days there's movies and TV.'

Manfred heard. He said, with a smile, 'I watch television also. Sometimes I will see a movie. Just because I appreciate a meal such as the one we have just had doesn't mean that I may not eat a hot dog now and then. But I don't confuse the two. No matter how splendid movies and television may seem, they are junk food for the mind, amusement for the illiterate, a bit of diversion for those who are momentarily in the mood for nothing more.

it was the "Busy Buzz of Brotherhood," to use the phrase popular among Earth's politicians and journalists.

Think, that for all time, all conflicts are finally evitable. Only the Machines, from now on, are inevitable!