did-you-kno: Smart people underestimate themselves; ignorant people think they’re brilliant. It’s a cognitive bias called the Dunning-Kruger effect, where the highly skilled assume that things they find easy are also easy for others, and the unskilled are so incompetent that they can’t recognize their own stupidity. Source
“Happiness in intelligent people is the rarest thing I know.” – Ernest Hemingway. Perhaps because the suffering of others is felt and understood more than those who remain ignorant to the world around them
She's right on point. People really never forget how you make them feel. That's the real reason people do business together or have personal relationships. Not because you're pretty or smart or more talented than any other. It's whether you're a headache for them or you make them feel something good or make their lives better/easier in some way.