We don't know all the answers. If we knew all the answers we'd be bored, wouldn't we? We keep looking, searching, trying to get more knowledge.
“Now being upon the haunches (as he necessarily must be in this case) is it impossible but he must be light in hand, because no horse can be rightly upon his haunches without being so.”
“I think Chris Matthews is a very bright guy. I'd listen to him even if he didn't shout at people.”