Youth cannot know how age thinks and feels. But old men are guilty if they forget what it was to be young. — J. K. Rowling. British author (born 1965) Youth
His priority did not seem to be to teach them what he knew, but rather to impress upon them that nothing, not even... knowledge, was foolproof.
If you're holding out for universal popularity, I'm afraid you will be in this cabin for a very long time.