VII. Wherefore the greatest and chiefest point of the instructions which relate to life must be implanted in the soul from the beginning,—to know the eternal God, the giver of what is eternal, and by knowledge and comprehension to possess God, who is first, and highest, and one, and good. For this is the immutable and immoveable source and support of life, the knowledge of God, who really is, and who bestows the things which really are, that is, those which are eternal, from whom both being and the continuance of it are derived to other beings. For ignorance of Him is death; but the knowledge and appropriation of Him, and love and likeness to Him, are the only life.