古时有一商人，善于经营马匹生意。他购得一匹良马，此马体态优美，毛色光亮，四肢矫健，堪称难得的好马。然而，这匹马虽然品质上乘，但因无人问津，一直未能售出。

商人思虑再三，决定采用一种特殊的营销策略。他将这匹马置于市集中央，并请来一位著名的相马师为其鉴定。相马师仔细观察后，郑重其事地宣称：“此乃千里马也，日行千里，夜走八百，非同寻常之物。”消息传出后，众人纷纷前来围观，对这匹马的身价啧啧称奇。

商人趁机宣布，此马售价高达十倍于普通马的价格。尽管价格高昂，但由于相马师的背书，许多人认为这是一次千载难逢的机会，纷纷争相购买，最终这匹马以高价售出。

原文：

古时有鬻马者，得一良马，形体俊美，毛色光润，蹄健有力，实为难得之良驹。然此马虽佳，久未售出。鬻马者计议良久，乃将此马置市心，召名相马者鉴之。相马者审视良久，正色曰：“此乃千里马也，日行千里，夜行八百，非凡品可比。”此言既出，众皆传扬。鬻马者遂言此马价为常马十倍。虽价高，然因相马者之言，人皆以为难得之机，竞相购买，终以高价售出。

译文：

In ancient times, there was a horse merchant who bought a fine steed. This horse had an elegant physique, glossy coat, and strong legs, making it a rare find. However, despite its excellent quality, the horse remained unsold for a long time. The merchant pondered deeply and then placed this horse in the center of the market, inviting a renowned horse appraiser to evaluate it. After careful examination, the appraiser solemnly declared: "This is a thousand-mile horse, capable of traveling a thousand miles a day and eight hundred at night; it is no ordinary horse." Once this statement spread, everyone talked about it. The merchant then announced that the price of this horse would be ten times that of an ordinary horse. Although the price was high, people believed it to be a once-in-a-lifetime opportunity due to the appraiser's words, and they competed to buy it, eventually selling it at a high price.

以上便是《马价十倍》的故事，通过这个故事我们可以看到，有时候商品的价值不仅仅在于其本身的质量，还在于如何有效地宣传和包装。这也提醒我们在日常生活中，不仅要注重自身能力的提升，也要学会恰当地展示自己，以获得更好的发展机会。