"That all comes of itself," they thought, "and there's nothing interesting or important about it because it has always been so, and always will be so.
And it's all always the same.
We've no need to think about that, it's all ready.
But we want to invent something of our own, and new.
So we thought of putting raspberries in a cup, and cooking them over a candle, and squirting milk straight into each other's mouths.