原話應該是：“.....As you grow older you will discover that you have two hands. One for helping yourself, the other for helping others.”
壹整句原話：“Remember, if you ever need a helping hand, you'll find one at the end of your arm. . . . As you grow older you will discover that you have two hands. One for helping yourself, the other for helping others."
樓主可參考壹下的鏈接,赫本的語錄集。