It's a very simple rule. Treat others as you would like to be treated. It is universal across all cultures and religions. Wikipedia explains it well in their article and references every culture, since the beginning of civilization. It is in the Bible several times, old and new testaments.
The concept appears to be lost in the 21st Century. Just contact customer service in any industry, whether it's a bank, ISP, retail store, manufacturer, etc. and you will not experience the Golden Rule.
I contacted Comcast three times, via email, over the holidays, because my cable internet dropped to pre dial-up speeds. I used email, because I wanted a written record of their responses. (Yes, it took minutes to upload an email, but I was stubborn). Although the written responses were polite, they never addressed my issue and were clearly "cut-and-paste" stock answers from some type of company approved response list. Each response took 24 hours. None of the disconnected paragraphs addressed my issue or even came close to a resolution. They also appeared to be written by someone possessing ESL (English as a Second Language). I finally capitulated and called them.
A recruiter called me regarding a company's contract position. I suspect I would not have received the call, unless they felt my qualifications matched their need. I returned the call several times. Each time a different person answered the phone and stated, the recruiter had just step out. They forwarded me to a general voicemail system that didn't even identify the mailbox recipient. You would think I was an ex-wife calling, with this treatment, rather than a qualified candidate. Also, the company initiated the contact.
If you believe in the Golden Rule, remember it is reciprocal.
Given this is the start of a new year, I appeal to everyone to reinstate this simple life maxim. I believe, the company that adapts the Golden Rule first . . . .wins!