Who said failure is not an option in Apollo 13 movie?

a character based on Wernher Von Braun, my guess. He was also quoted with ( We are Experts) which was Nazi era Propaganda and seemed to cast aspersions on certain aspects of US Constitutional rights- the phrase went in part- We avoid small errors as we sweep towards the GRAND FALLACY> ( it took me years to figure out what the Grand Fallacy was- the equality of mankind!) so it goes.