What is the philosophy of empedocles?

empedocles as far as i know is the last Greek philosopher who wrote an epic verse among of this verses only two was survive "on Nature" and "pacification's. He then believe that the beginning of the universe is the four permanent unchanging being', fire, water, and air. By the combination and repulsion of this elements something was create. This elements combine by LOve (philia), and repulsion happened when hate(neikos) arrise. and this happened cynical without end...