Nowadays, with the development of Internet, more and more business are done through the Internet. The most important factor that decides a person's success is the credit. There is a famous example explains how credit influences one's life. A man took a train in Europe, as there was no one to supervise him, so he thought he could not buy the ticket and ran to the train directly. Later, when the man wanted to interview a job, the employers refused him because they told the man that his credit did not reach their standard. The man realized that he had lost his credit for not buying the ticket for one time, which taught him a lesson to keep his credit. The credit helps us to make friends and cooperate with others well. Don't lose your credit, or you will lose many chances.