6. Look around; there are the heaven and the earth. They cry aloud that they were made, for they change and vary. Whatever there is that has not been made, and yet has being, has nothing in it that was not there before. This having something not already existent is what it means to be changed and varied. Heaven and earth thus speak plainly that they did not make themselves: "We are, because we have been made; we did not exist before we came to be so that we could have made ourselves!" And the voice with which they speak is simply their visible presence. It was thou, O Lord, who madest these things. Thou art beautiful; thus they are beautiful. Thou art good, thus they are good. Thou art; thus they are. But they are not as beautiful, nor as good, nor as truly real as thou their Creator art. Compared with thee, they are neither beautiful nor good, nor do they even exist. These things we know, thanks be to thee. Yet our knowledge is ignorance when it is compared with thy knowledge.