Are you interested in robotics, Mr. Byerley? - Isaac Asimov

Frustration of my plans to lighten the disaster will convince people that the future holds no promise for them. Already they recall the lives of their grandfathers with envy. They will see that political revolutions and trade stagnations will increase. The feeling will pervade the Galaxy that only what a man can grasp for himself at that moment will be of any account. Ambitious men will not wait and unscrupulous men will not hang back. By their every action they will hasten the decay of the worlds.

Didn't you ever have a robot go wrong on you? It's your anniversary, you know.

Nowadays, of course, we are taught that the flat-Earth theory is wrong; that it is all wrong, absolutely. But it isn't. The curvature of the Earth is nearly 0 per mile, so that although the flat-Earth theory is wrong, it happens to be nearly right. That's why the theory lasted so long.