They make the children come up here once a year, after they're five. I don't know if it does any good. They don't get enough of it, really, and the f… - Isaac Asimov

The image of Hari Seldon reached into open air and the book once more appeared in his hand. He opened it and said: "But whatever devious course your future history may take, impress it always upon your descendants that the path has been marked out, and that at its end is a new and greater Empire!

But now, Earthmen are all so coddled, so enwombed in their imprisoning caves of steel, that they are caught forever.

the self-evident proposition that no being can create another being superior to itself,