As we know, most of the material things in our daily life have to be bought with money. But money is not all-powerful. There are many things which money cannot buy, such as time.

　　There are twenty-four hours in a day. Sometimes when we are very happy, we wish that the period of happiness would last longer. But no matter what we do, or how much money we are willing to pay, we cannot make a day last longer than twenty-four hours. On the other hand, when we are unhappy, money cannot make the unhappy time pass away more quickly, nor can it bring us a day without sadness and worries. We may be rich, but our money can't bring back our lost time. As the saying goes, "Time past cannot be called back."

　　Here we can say very clearly that money can buy a lot of things, but never time. So money, after all, is not all-powerful.

　　Thank you.