"The desire to economize time and mental effort in arithmetical computations, and to eliminate human liability to error is probably as old as the science of arithmetic itself."

"Are we making more mistakes now? I don't think so. Science is a high-risk activity. And when you do science—this is very important incidentally for the general public, and for policy makers—if you are…"

"Either history is really governed by laws, and in that case a truly human-activity is impossible, except perhaps in a technical sense; or human beings really make their own history, and then the task …"

"There does not exist a category of science to which one can give the name applied science. There are sciences and the applications of science, bound together as the fruit of the tree which bears it."

"Systems science is a science whose domain of inquiry consists of those properties of systems and associated problems that emanate from the general notion of systemhood."