Everyone has areas of strength and weakness. Whether it is book smart or not, everyone has areas where they excel. Can they respect each other for their individual strengths? Maybe one is super smart academically and the other is very strong/athletic. I think that mutual respect is the key. That being said, the non-academic will probably need to be smart enough to carry on a conversation with the academic person about thoughts, ideas, etc or there won't be much in common, right? But do they have to be as over-the-top into whatever subject interests the other person....no, they don't.