I look at my Caltech classmates and conclude that math whizzes do not take over the world. The true geniuses—the artists of the scientific world—may be unlocking the mysteries of the universe, but the run-of-the-mill really smart overachievers like me? They’re likely to end up in high-class drone work, perfecting new types of crossword-puzzle-oriented screen savers or perhaps (really) tweaking the computer system that controls the flow in beer guns at Applebee’s.

Sandra Tsing Loh

Not a rationality quote as such, but maybe an anti-hubris caveat for those of us that were never child prodigies.