“We have an unknown distance yet to run, an unknown river to explore. What falls there are, we know not; what rocks beset the channel, we know not; what walls ride over the river, we know not. Ah, well! we may conjecture many things.”
–John Wesley Powell, the first white person to navigate the Grand Canyon and explorer of much of what now typifies the American southwest, born on this date in 1834.
Describe a time when you conjectured incorrectly and what you learned from your mistake.
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