It is true. How many times have you seen or heard something and you have said, "I can't believe it!!"? And have you ever played the game where a bunch of people sit around and one person will start and whisper something in the next person's ear, and it goes around the circle, and then you see what the last person comes up with. Then you see how different what the last person has to say is from what the first person said. I am sure you have seen that done. You can't believe what a person says if it is second hand because it gets really messed up in the translation.
I know what I have given you. I do not know what you have received. ~Antonio Porchia