“I have learned to use the world ‘impossible’ with the greatest caution.”

“I have learned to use the word 'impossible' with the greatest caution.”

“You can’t have a baby in one month by getting nine women pregnant. ”

“I'm convinced that before the year 2000 is over, the first child will have been born on the moon.”

“Basic research is what I’m doing when I don’t know what I am doing.”

“We can lick gravity, but sometimes the paperwork is overwhelming.”

“Crash programs fail because they are based on the theory that, with nine women pregnant, you can get a baby a month.”