MBTI. Commonly called "
The Scientist." Often seen as arrogant, aloof, or haughty, but in fact,
INTJ's just don't give a shit what you think about them. They value
facts and logic above all else, and scorn illogical reasoning. One of the hardest things to understand for an
INTJ is emotion, and decisions made because of emotion.
INTJs are direct, and if they have a problem with you, they will tell you. If they think you're not worth their time, they won't try to push you away, they'll just completely ignore you.
INTJs enjoy thinking about theories, and tearing them to bits, not because they disrespect them, but because they like pointing out what would work and what wouldn't. For the above to reasons, the biggest insult you could give to an INTJ would be to completely ignore their theories; it means they're not even worth the effort of considering.
The two hardest things for an INTJ to understand are irrationality and emotions.