Which Terry Pratchett character said something like "It doesn't matter if you are right or wrong, so long as you are certain"?
I'm almost certain this isn't a Discworld character; in fact, I think it's in The Carpet People or the Bromeliad trilogy. But I can't find the quote itself online, and I don't have access to the books right now. The gist of the quote is that it's better as a leader to show your commitment to a decision than agonise over picking the perfect choice.