Originally posted by God
The two governments that you should use are democracy and monarchy. Have democracy and build units, then switch to monarchy when fighting.
Wouldn't staying a Republic be best? The only thing Democracy gives you that a Republic doesn't is the slightly faster workers, and the war weariness is far less as a Republic.
At the higher difficulty levels its nearly impossible to be churning out science and maintain a large military right away. If you focus on one, you'll fall behind in the other. All of the science/commerce buildings cost a huge amount of shields for the time they become available.
I prefer to go to war early, build my FP in a conquered city ASAP, and acquire my techs through warfare. If well-timed, (mid-late middle ages) i'll use my golden age to construct my libraries/universities/marketplaces..etc.
If my starting position was not fertile enough for an early war, (no restarting

) i'll concentrate solely on expansion and let myself fall a bit behind in other areas. If somebody comes looking for trouble, pop rushing a few archers can keep even the strongest civs at bay for a good amount of time, though you may have to part with one of your corrupt land filler cities for peace.
In my experience, at some point in the game, you're going to have to bite the bullet and let your military sag in favour of your infrastructure. Should a sudden war break out, you can switch production from those expensive buildings to whatever the current military unit may be. A terrible waste, but not every war is convenient.
I'm sure its different for each individual player, so you'll probably recieve a wide range of answers. I'm interested in what other players have to say, as i've had trouble with this area as well.
