 Sure, now that's a good question. It's an important question indeed. So let's begin by saying what St. John says in 1 John 5. He says, All wrongdoing is sin, but there is some sin that is not mortal. This is where we get the term mortal sin from. It kills the life of grace in the soul. So there are, we can infer from that, there are gradations of magnitude. There are gradations of...