Looking back on the promising youth at that time, we are now far away to take care of slowly, the intersection is vague and visible is that we laughed a shadow fell in the whole starry sky. Listen to the song over and over again, and the emotions play over and over again. At first, I always believe it, and at last, I always avoid it. Let the world bring love, let the world bring pain, moving is endless, sadness is visible. In a word, a way of thinking, a person, a period of time in the past, we are doomed to see the spring blossom, but also doomed to hear the broken bridge flowing water. Many times we intentionally feel the hard journey, and many times we intentionally feel the breath of the past. We are not comforting ourselves. Youth is a book. Only by reading carefully can we feel its tossing and turning like smoke. If someone wants to sing the song you love with you, who will hide in the corner and listen quietly alone, saying that the world brings us happiness, now can not find back the pure laughter at that time, all say that the world can see hope.