"But money, wife, is the true Fuller's Earth for reputations, there is not a spot or a stain but what it can take out"

This quote by John Gay is describing the power of money in terms of track record. He is suggesting that cash can be utilized to clean up any stain or find on one's credibility. Simply put, cash can be utilized to purchase respectability and to conceal any past indiscretions. This resembles the idea of Fuller's Earth, which is a clay-like compound used to take in oils and dirt from materials. In the same method, money can be utilized to soak up any negative elements of one's credibility. Cash can be used to buy impact, power, and respectability, and it can be used to offset any previous errors. In this way, money can be viewed as a powerful tool for enhancing one's track record.