Is the most difficult to break a sentiment in the world, is the most difficult in the world for love, is the most difficult in the world and human feelings, the most rare is friendship, the most difficult points in the world is love, is the hardest thing to find the truth in the world, the rt of the world is heartless, the world's most difficult to guess is the mood, is the most difficult in the world for kindness, in the world the unded worry, your smiling expression is the most lovely in the world……………………………………………………………………………………………