C.S. Lewis On Making

I came across this C.S. Lewis quote about God’s “creating” and man’s “building” in The Business Of Heaven:

I know that to create is defined as ‘to make out of nothing’, ex nihilo…This act, as it is for God, must always remain totally inconceivable to man. For we—even our poets and musicians and inventors—never, in the ultimate sense, make. We only build. We always have materials to build from. All we can know about the act of creation must be derived from what we can gather about the relation of the creatures to their Creator.