When I was a practicing manager several years ago, I came across this quote rather accidentally, had it printed on a card and placed it under the glass top of my office table -- facing my visitors and bosses -- for all and sundry to see. It never worked on my, or perhaps anybody's, bosses, but the content of the quote remains immensely quotable till this day. I rate it as an "eternal" pearl of wisdom, insofar as the "homo sapiens sapiens" are concerned.