知足常乐，珍惜自己所拥有
Learn to Treasure What You Have Got
The biggest weakness of human nature is that they don＇t know how to treasure what has been achieved. This is exactly the reason why we always think that "the grass is greener on the other side of the fence", and also the explanation to most of the betrayals and regrets in life. We won＇t be conscious of how important something is until the moment we lose it.
The fatal shortcoming is reflected in our childhood. A kid may easily get fond of other kids＇ toys and begin to treat his own ones like garbage
