There are two reasons for drinking: one is, when you are thirsty, to cure it; the other, when you are not thirsty, to prevent it…. Prevention is better than cure. – Thomas Love Peacock, Melincourt, 1817
The only thing that could spoil a day was people. People were always the limiters of happiness except for the very few that were as good as spring itself. – Ernest Hemingway
There was a failure to recognize the deep problems in AI for instance, those captured in Blocks World. The people building physical robots learned nothing. – Marvin Minsky