I classify science into two: exact and non-exact science. I am sure you have known mathematical formulas to calculate area, volume, profit and loss in business, etc. This field is known as exact science which requires logical thinking. Beyond exact science such as philosophy, theology, social, politic, in my opinion there is no exact formula. Am I correct? Well, what if we make a mathematical formula to calculate the level of sincerity. Can it be? Let's try it. For this one I made the following illustration. I am aware that the hypothesis above has not yet been scientifically tested, therefore I allow the researchers to test it. For readers of this blog, please understand and prove it yourself from your own viewpoint. Perhaps you are imagining the formula above is a form of bill to calculate the expected result of your good deeds to God. Ohh... that is up to you because I am not forcing you to do that.