Cup with Aesop quote

Item

Title
Cup with Aesop quote
Description
1990? Large gray and blue cup with "No act of kindness no matter how small . . . is ever wasted. Aesop" on two sides. Royal Norfolk. Chesapeake, VA: Greenbrier International. From Sharon Green, Dallas, TX, thru eBay, perhaps Feb., '06.

The quotation used on this large cup has become rather standard for citation on mugs, mousepads, t-shirts, and elsewhere. It comes presumably from LM. I am not sure it fits exactly with fable wisdom. Fable wisdom might say "Sometimes you can help yourself by helping other people!" I preached this past weekend that values not rooted in stories are ephemeral, and this may be an example. I want to know "What story did that saying come from?" This is one of many eBay purchases lost in history, and I can find little about this cup on the web.
Date
1990?
Source
From Sharon Green, Dallas, TX, thru eBay, perhaps Feb., '06.
Subject
Tableware
Cups