This is not a big philosophical question or anything, I'm just a little confused in my physics class. A good question arose in the text book, and I don't know how to answer it. Newton's 3rd law, as everyone knows, is "For every action there is an equal but opposite reaction."

If you are pulling a wagon, then the force you use pulling on the wagon would be equal to the force of the wagon pulling on you, right? (I know this doesn't sound like it makes sense, it may not.) So then you could say the force of you on the ground is what allows you to overcome the force of the wagon and pull it, but wouldn't the force you exert against the ground have an equal but opposite reaction itself and result in the ground exerting the same force against you which means you would just stay in place? Damn. It's only after typing it that I realize just how confused I am...somebody please explain to me why we're not all stuck in one position forever.