1. When you teach your kids, you need to be hard-nosed and say, "That's the way it is. No negotiations." Otherwise, your kids may keep arguing with you and tire you out.2. As a Christian, do not give up your position and succumb to worldly matters that contradict the Bible's principles.
 be hard-nosed do not give up
If you got severely injured and became a egetable would you want to keep living?