Generally speaking, is it bad strategy to work on multiple social policy trees at once? I generally find myself wanting to start with Liberty or Tradition but then also opening Honor for the bonus vs. barbarians. Would it be better to stick with one tree until it's finished? Also if anyone can give any quick hints on how to achieve Science victory, that would be great. I can't seem to do it on Prince difficulty; there are usually one or two Civs way ahead of me. I think it's because they have way more cities, so more science, so I think I probably have to either settle more cities (I have been usually sticking with 4 or 5) or conquer some to get my science pool bigger.