It is easy to predict an automobile in 1880; it is very hard to predict a traffic problem. - Isaac Asimov

Enough, my very noble husband. You had another of your vacillating consultations with your councilors. Fine advisors." With infinite scorn, "A herd of palsied purblind idiots hugging their sterile profits close to their sunken chests in the face of my father's displeasure.

you can’t just move backward. You can’t push the chicken back into the egg, wine back into the grape, the boy back into the womb. If you want the baby to let go of your watch, you don’t just try to explain that he ought to do it — you offer him something he would rather have.

Don't you believe in flying saucers, they ask me? Don't you believe in telepathy? — in ancient astronauts? — in the Bermuda triangle? — in life after death? No, I reply. No, no, no, no, and again no. One person recently, goaded into desperation by the litany of unrelieved negation, burst out "Don't you believe in anything?" "Yes", I said. "I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be."