Was not space itself somehow divine, possessing as it did the attributes of eternity and infinity? Was it a second divine entity, which had existed beside God from before the beginning of time? Newton had always been concerned about this problem. In the early essay De Gravitatione et Aequipondio Fluidorum, he had returned to the old Platonic doctrine of emanation. Since God is infinite, he must exist everywhere. Space is an effect of God's existence, emanating eternally from the divine omnipresence. It was not created by him in an act of will but existed as a necessary consequence or extension of his ubiquitous being. In the same way, because God himself is eternal, he emanates time. We can, therefore, say that God constitutes that space and time in which we live and move and have our being.