In the Visuddhimagga, on the topic of virtue, there is a reference to the ten courses of action (kamma):
Furthermore, virtue as volition is the seven volitions [that accompany the first seven] of the [ten] courses of action (kamma) in one who abandons the killing of living things, and so on. Virtue as consciousness-concomitant is the [three remaining] states consisting of non-covetousness, non-ill will, and right view, stated in the way beginning, “Abandoning covetousness, he dwells with a mind free from covetousness” (D I 71).
I know the quote is taken out of context from the chapter, but I was just wondering about the ten courses of action (kamma), and their reference and significance?