With faith you will never know, because you're putting a label on something without testing to see if it fits. It's like doing a simple equation: 10x-10=0 Of course, the solution (found when working the algebra) is x=1. Faith would see that equation and go "I think it's 3i." One would reply with, "You didn't even try to solve it, and there aren't even any imaginary values in there." The faith-driven individual would say, "Some guy told me that was the answer, and I know that is the solution in my heart."