Come, captain, we had no leadership worthy of the name then, and we faced the cleverest opponent, the heaviest armor, the strongest force of all. Yet… - Isaac Asimov

The Solarians have given up something mankind has had for a million years; something worth more than atomic power, cities, agriculture, tools, fire, everything; because it's something that made everything else possible. (...) The tribe, sir. Co-operation between individuals. Solaria has given it up entirely. It is a world of isolated individuals and the planet's only sociologist is delighted that this is so. That sociologist, by the way, never heard of sociomathematics, because he is inventing his own science. There is no one to teach him, no one to help him, no one to think of something he himself might miss. The only science that really flourishes on Solaria is robotics and there are only a handful of men involved in that, and when it came to an analysis of the interaction of robots and men, they had to call in an Earthman to help.

Science doesn't purvey absolute truth. Science is a mechanism. It's a way of trying to improve your knowledge of nature. It's a system for testing your thoughts against the universe and seeing whether they match.

Life is not like a murder mystery. In mysteries people always do the same thing. Then when some little thing is out of line, some wise-guy amateur detective makes big deductions. In real life, people don't do the same things all the time. They do different things at different times. In real life, people are crazy.