The quote means that cash is a more trusted source of reliability than an individual's reputation or credit. Even if somebody has a great track record for being truthful and reliable, their ability to pay and fulfill monetary obligations is eventually what determines their credibility.
This quote is written / told by John Dewey between October 20, 1859 and June 1, 1952. He/she was a famous Philosopher from USA.
The author also have 24 other quotes.
