If there is no God why can you not rid yourself of abiding guilt?
Against whom have you sinned?
Have you sinned against nature? It is under you and has no authority.
Have you sinned against the animal kingdom? It is not your equal. Your evolution is supreme.
Have you sinned against your neighbor? Who is he to require such emotional turmoil from your soul?
Why does your heart betray you?
“Transgression speaks to the wicked deep in his heart; there is no fear of God before his eyes. For he flatters himself in his own eyes that his iniquity cannot be found out and hated…he sets himself in a way that is not good…” (Psalm 36:1-4)