Everybody wants it, everybody works for it, and nobody can live without it. What is it? Money, of course! How often people ask us, “Will you go on holiday this summer? Will you buy this? Will you do that? ” And very often the answer is , “It all depends…” It all depends what? “It all depends” always means, “If I have enough money, I shall…”. Not only your simplest needs, but our wildest dreams are often connected with money . “If I win the national lottery(彩票), I shall…” Some people think it is the root of all evil, others think it will solve all the world's problems. Both sides agree there is never enough of it. Of course money isn't an answer to everything. You can't buy love or happiness, for example. But as someone said. “If you are going to be unhappy, it is easier to be unhappy in comfort.”