Cautious over Confidence
I strive to be the one that says the right answer cautiously. Instead of he that says the wrong answer confidently.
One should never answer confidently even if it is the truth or the answer is the correct one. For you don't understand why that answer is correct.
You may know what year that war started, but why that year. Why not the year before or the year after. What lies were told, what truth's hidden to ensure it started that year.
You may know that birds fly, but why do they fly, what advantage does flight give them. What about their body allow for flight.
He who says the answer too confidently is someone that will seem averse to learning. Only those who are true masters can answer with confidence. But even they keep some caution in the back of their mind. In case there is more to the answer, more to the truth.