I have ever heard some philosophers said that there are just three things are very important in our life, sleep, food and clothes. No matter you are poor or rich, tall or short, healthy or unhealthy, you need to sleep, eat food and wear clothes. Among them, eating is the most important thing. when you ask some people what kind of food are their favorite, they might list a variety of food and can't make the decide quickly. This question is also hard to answer for me ,until one day when I was starving, I suddenly got the answer. Because a piece of bread can be a big meal in my eyes when I was really hungry. But when I am full, a piece of bread can't attract me any more. You might say hot pot is my favorite food, but if you have the chances to eat it everyday, what would you feel? you might throw up when you see it. So, whether a kind of food is your favorite or not just depends on your mood. It can be changed anytime.