"The earliest appearance yet located of this statement is in 50 Ways to Lose Ten Pounds (1995) by Joan Horbiak, p. 95, where it is quoted as an anonymous proverb. It seems to have circulated as such for a few years before it began to be attributed to Saint Exupéry around 2007."
Yikes! I am eating humble pie for dinner!
I realized I had not sourced this quote, in all my excitement.
This is why I love Wikiquote, though the results a tad embarrassing
Yet one more instance to practice perfectly imperfect -- I guess I am grateful