Did Nelson Mandela really say it?
Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure.
Really: Marianne Williamson, 1992
It is from Marianne Williamson's 1992 book A Return to Love. Mandela did not use it in his inauguration speeches.
How to post it: Credit Marianne Williamson, A Return to Love, 1992.