Is the problem with the world the fact that intelligent people are full of doubts, while stupid ones are full of confidence?

The more you know, the more you realize how much you don't know, and the more questions you have. You are curious. You form opinions that you revise as you learn more.
Stupid people form beliefs that they are unwilling to question.

Is the problem with the world the fact that intelligent people are full of doubts, while stupid ones are full of confidence?
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