My question is in regards to the forces of friction. Following Newton's Third Law, every force should elicit another force. If I were to let's say push a crate, I would exert a force upon the crate. Therefore the crate would exert a force upon me. If the reason I have to apply force to move the crate or if I'm not even able to move the crate is because of the force that friction is eliciting in the opposite direction as me, then what is the corresponding third law force for it? More succinctly, what is the reaction force from the force of friction and to what is it applied to? Thank you very much to anyone who can respond. Boggling my damn mind. And as this being my first post, I'd like to say this is an awesome forum and look forward to learning much here.