This problem has bothered me for a long long time. Facing something intresting, I will value it to decide whether to buy or not to buy. However, it is very diffcult to determine the very value. That is, almost every thing seems not attractive enough. Though acountering something attractive, almost the case is the price seems a little expensive. At the moment, the problem bothers me again, to buy or not to buy? This summer, I determine to learn tennis and I have taken part in a tennis camp. However, I don't have a racket! A racket for beginner is about two thousand dollars, or higher than three thousand dollars if it's a better one. Compared to the cost, I am not sure whether my passion can afford such money. Speaking of the textbook, I have the same feeling. Gee! How expensive it is! Just one book can cost above one thousand dollars. Umh... This is the first time that I realize the fact that a student need a lot of money. Truly, money talks! -- Absense of proof is not proof of absense. Absense of courage is not courage of absence. Anything is possible! --

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