Sure, to avoid confusing two separate matters. Natural selection (of existing live organisms) is one thing, the origin of life is another. Now, what do you want to discuss, the mechanism of evolution, or the origins of life?
One need not be confused...only the liberal evolutionists seem to get confused. Are you seriously suggesting you're not intelligent enough to discuss a connection between the two?
Are you sufficiently intelligent to understand that there is no connection between them? Natural selection works on living entities, so natural selection is not supposed to explain the origins of life.