I wonder how many parts of our memory are authentic. One day, I mentioned a thing I experienced with a friend, and it appeared that there were both intersection and emptiness between the most impressive of mine and that of my friend, which brought me to doubt whether my memory is authentic. Some details my friend told seemed to be an empty in my mind, and verse vice. Perhaps, people can remember nothing but what they want to remember. As time goes by, our brain will process our memory and supplement it to completion when we recall the past. Memory is like a film edited, and every individual is like an independent director, with diverse styles of our own.