Belief， a creation of human's wisdom， always plays an important role in human's society. As a saying goes：“ If one's mind is full， it won't be filled with any bad idea.” Anyone who has strong beliefs can enjoy a colorful life. Otherwise， he will lose himself in his way of life.

Beliefs are so important that it can change one's fate. Two little mice fell in a bucket of cream. The first mouse quickly gave up and drowned. The second mouse wouldn't quit. He struggled so hard that eventually he churned that cream into butter and crawled out.

Obviously， the latter mouse is the one who has his own beliefs. There are always hopes in his eyes that encourage him to fight， and fight， and fight. He never gives up when he is in some difficulty situations. Because the optimist sees the opportunity in every difficulty， while the pessimist sees difficulty in every opportunity. The first mouse is one of these kinds of pessimists. He holds no belief in his life and become the slave of his fate.

Thus，it can be seen that one with firm beliefs is likely to get successful and master his own life.