I will never forget when [Franklin D.] Roosevelt announced that we would build thirty thousand fighter planes. I was on the task force that worked on our economic strength, and we had just reached the conclusion that we could build, at most, four thousand. We thought, “For goodness sake — he’s senile!” Two years later we built fifty thousand. I don’t know whether he knew, or if he just realized that unless you set objectives very high, you don’t achieve anything at all.
–Peter R. Drucker (November 19, 1909–November 11, 2005), in interview with Bill Moyers, 1988