“信用”值多少钱？古代一富商渡河时翻船落水，高呼“救命”。渔夫划船过来，富商许诺获救后送千两黄金。富商上岸后只给百两。渔夫怪他不讲信用，富商反辩道：信用值多少钱？你没费劲就得到百两，该知足了。不久，富商在上次出事的地方又翻了船，又碰到上次的渔夫。富商许愿? How much is “credit” worth? A wealthy ancient merchant crossing the river when the water, shouting “help.” Fisherman boating over, rich merchants promised to be rescued thousands of gold. After the rich merchant landed only one hundred and two. Fisherman blame him without credit, wealthy businessmen argued: How much credit? You do not have to work hard to get one hundred and twenty, that contentment. Soon afterward, the wealthy businessman rolled over again at the place where the accident happened last time and met the last fisherman. Rich businessman wish?