Nowadays, people are easy to be lost in free commercial ads, the classic example is the make-up ads. When girls walk in the street, there will be some salesmen come after them and tell them to get free products, so the girls are willing to come to the shop. But then they find that they have been cheated because the salesmen ask them to pay the money to buy another products before they get the free one. There is no free meal. So we need to work.hard to get the things we want. In western countries, most parents ask their children to do some house work to get pocket money, because they want their children to understand the coming of money bases in hard work. It is important for us to know we need to pay for what we want. 如今，人們很容易迷失在免費的商業廣告裏，典型的案例就是化妝廣告。當女孩走在街上時，會有一些商人緊隨她們身後，告訴他們可以拿免費的產品，這樣女孩才願意去他們商店。但是她們隨後就發現被騙了，因爲商人要求他們支付金錢去購買另一個產品才能得到免費的贈品。沒有免費的午餐。所以如果我們想要得到自己想要的東西，就得付出努力。在西方國家，大多數父母都讓他們的孩子做一些家務來獲得零花錢，因爲他們想讓孩子明白金錢的得來是建立在付出的基礎上的。我們得要爲自己想要的東西有所付出，明白這一點很重要。
