You who make [idols], that they may be able to be worshipped, do worship; and you worship, not with the spirit of some worthless perfume, but with your own; nor at the expense of a beast's soul, but of your own. To them you immolate your ingenuity; to them you make your sweat a libation; to them you kindle the torch of your forethought. More are you to them than a priest, since it is by your means they have a priest; your diligence is their divinity.
Tertullian