Oftentimes, yes. The reason is simple: quiet people tend to be smarter than talkative people because they tend to be introverts, and therefore have a higher baseline of arousal. Let me explain why this may lead to intelligence. read more
Yes, they may be smarter analytically, but there are so many exceptions and the definition of “intelligence” is so vague that it almost becomes ridiculous to say such a statement in the first place. read more
The people who are the most intelligent are actually the ones you'd least expect to be smart. They patiently wait for other people to say what they need to say. They choose to open their ears rather than their mouths. The quietest people are the smartest people; the ones who talk less have the most brainpower. Go figure. These are the introverts. read more