It's wrong to steal something that isn't yours.
Sun's favorite musician has just put out a new album that Sun has been dying to listen to.
Sun wants to download the album.
Sun decides to purchase the album from a digital store.
Sun downloads the album for free via online torrenting.
Sun supports his favorite artist and gets to listen to their music on his smart phone.
Sun now has the entire album on his smartphone without having to pay for it.