  In elementary particle physics the philosophy of virtual particles is widely
used. We use this philosophy to obtain the famous inverse square law of
classical physics. We define a formal model without fields or forces, but with
virtual particle - information transmitter. This formal model admits very
simple (school level) interpretation with two classical particles and one
virtual. Then we prove (in a mathematically rigorous way) that the trajectories
in our model converge to standard Newtonian trajectories of classical physics.
