About bicycles and good people being bad

Couple of original quotes by the contemporaries:

"You can't possibly get a good technology going without an enormous number of failures. It's a universal rule. If you look at bicycles, there were thousands of weird models built and tried before they found the one that really worked. You could never design a bicycle theoretically. Even now, after we've been building them for 100 years, it's very difficult to understand just why a bicycle works - it's even difficult to formulate it as a mathematical problem. But just by trial and error, we found out how to do it, and the error was essential."

Freeman Dyson


"Good people will do good things, and bad people will do bad things. But for good people to do bad things —that takes religion"

Steven Weinberg