Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure.

Ch. 7 : Work, §3 : Personal Power, p. 190 (p. 165 in some editions). This famous passage from her book is very often erroneously attributed to Nelson Mandela. About the mis-attribution Williamson said, "Several years ago, this paragraph from A Return to Love began popping up everywhere, attributed to Nelson Mandela's 1994 inaugural address. As honored as I would be had President Mandela quoted my words, indeed he did not. I have no idea where that story came from, but I am gratified that the paragraph has come to mean so much to so many people."