Epicurus believed everything reduces to atoms and void – including our mind (psyche) – and so rejected the conception of the immortal soul, which had been central to prior religious and philosophical thought. The gods, he held, may exist – but even if they do, they have nothing to do with us, and hence give us no moral obligations, no divine law, and no higher purpose. Therefore, the best thing you can do, and in fact the highest good, is to pursue a life of pleasure.