Subject: What is the Law of Conservation based on? And who wrote it?

If I had a model that spins using ordinary magnets (not electric)
and the model could self sustain its spin (meaning:  The energy 
created by the magnets causes the spin which sustains the model)
Could I create Free Energy (if I exceed the amount of energy needed to 
create the magnets and the model)?
If it does, would it conflict with the Law of Conservation?
Would an equation to solve my model look like:

F-R[equ]E  where F is the Force or power (push and pull) of magnets, R is 
frictional Resistence, and E is energy.

Re: What is the Law of Conservation based on? And who wrote it?