If you ever need a helping hand, it's at the end of your arm. As you get older, you must remember you have a second hand. The first one is to help yourself, the second one is to help others.
Audrey Hepburn: An Intimate Portrait (1993)
According to the Quote Investigator, these words "were spoken by her, but she did not claim credit for them. Her family members knew that Sam Levenson crafted the text."
Time Tested Beauty Tips[quoteinvestigator.com]