It is not enough to do your best; you must know what to do, and then do your best.

It is not enough to do your best; you must know what to do, and then do your best.

W. Edwards Deming

Quote authenticity

Score:	Excellent This quote has an official author source You can cite this quote with confidence as true and correct Listed below is the factual evidence of an official source published by either the author, an author's representative or estate

2017 November 21	Link: http://quotes.deming.org/authors/W._Edwards_Deming/quote/10084	Image evidence

2017 November 21	Link: https://www.google.com/search?q=W.+Edwards+Deming+quotes	Image evidence

American professor, author, and consultant

October 14th, 1900 - December 20th, 1993