Being a smart (even brilliant) person and thinking the people around you, whether they are your friends, family, co-workers, superiors or customers, are not as smart (or worthy) as you. Because you'll almost certainly be wrong.
And you'll almost certainly treat them with less respect than they deserve. And they'll sense it. And your brilliant, genius idea will die because those "less intelligent" people sensed something wasn't right.
Thinking you're smarter than you are is the dumbest thing you can do.
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