As long as things exist, eternity exists because a thing just does not appear from nothing and vanish into nothing. Even nothing is something missing ~ if everything in the universe disappears, the space left behind still exists. When I came into the world, the world was already here. When I leave, it continues to exist. Things come and go, but eternity is a reality. It follows that God must be a reality too. In fact, he is the only logical explanation for all that exists. Had absolutely nothing existed, I wouldn't be here now to talk about it. The only alternative would be that we have God existing for all eternity. The wise one is the one who makes sure that he will have life for all eternity as the soul is eternal.