I am thankful to all those who said NO to me. It's because of them I did it myself. ~misattributed to Albert Einstein
Adam Rifkin stashed this in Quotes!
This quote is being attributed to Einstein on the Internet, but it appears to come from Wayne W. Dyer's book You'll See It When You Believe It, page 54, according to Google Books. Dyer does not attribute it to Einstein, but mentions Einstein in the same paragraph.
Source of setting the record straight:
It's still a great quote about gratitude, no matter who said it.