This post is a very brilliant one which I have learned from too. every point stated is so true. Even when you lie to cover up someone's mess. You may continue to feel restless until you say the truth or later get embarrassed when the truth comes out.
And when you say the truth in some situations you may regret it because people perspectives when viewing things are so different. Especially in a setting where people believe in lies than the truth.
Some people might even know it's a lie but that's what they want to believe instead of the truth. because just like the say THE TRUTH IS BITTER.