Everyone has a rock in their heart. When people don't think it's worth much, then it will not be worth much; when people don't think it's worth anything at all, then it won't be worth anything. This rock is called "hope". A lot of times, it is up to you to define hope and dreams. No matter how old or how busy your days get, never give up on your hope and never lose yourself. Go through every day well, and keep a record of little moments of happiness.