Morals are a funny thing. Some people have them, others seem to not. Some seem like they ignore their conscience when we know good and well they had one early on in life.
The best explanation I’ve ever heard about conscience was from a podcast by Alistair Begg.
American Indians used to believe there was a triangle in your diaphragm. When you made a decision that went against their customs or traditions (we’ll call them morals), the triangle would turn, poking you to listen and repent. If you repented, it would turn back, pointing straight up, doing no harm. If you didn’t, it would begin to wear down the points of the triangle. Each time you made that bad decision and offered no repentance, the triangle would become more like a circle. At some point, you would stop getting poked and wouldn’t know the difference between right and wrong.
It makes sense. No, there is no triangle in you, but there is a conscience. It was put there by your Creator and we have all one. Rounding off your triangle can cause harm to you and those around you. Keep it from spinning out of control and you’ll do just fine in this life.