"This sovereignty exercised by the eternal God over the universe is mirrored by the sovereignty your immortal soul exercises over your frail body."
Let me elaborate:
"That which is always in motion is eternal. However, that which communicates motion to some other thing but is itself moved by some other force, must necessarily cease to exist once this outside motion has ceased. Therefore, the only thing that never ceases to move is that which has the power to create motion on its own, for it can continue to move eternally because its power to achieve motion depends on itself alone. This is the source and the first principle of motion for all things that move. Being the first principle, it has no beginning. For since the first principle is the ori­gin of everything else, it cannot have an origin itself. If it did originate from something else, we could not call it the first principle. And since it never had a beginning, it will never have an end. For if it did end, it could never be reborn from any other source and would no longer be capable of creating things, which is obviously what the first principle has to do. The source of all movement, then, is that which has set itself in motion and has no beginning or end. If it had beginning or end, one would have to imagine the entire heaven and every other created thing crashing down and ceasing to be, for that is what would happen if the force generating their motion were taken away."
"Therefore, since it has been demonstrated that the self-moving principle is eternal, the same must be applied to the human soul. For unlike inanimate objects which can only be set in motion by some external force, the soul, in its very substance and nature, is an animate thing that, as such, derives its animation and motion from within itself. Since the soul possesses this characteristic of self-motion, we can only conclude that it, too, has no beginning and lives forever."
-Cicero from The Dream of Scipio
)
