Gandalf: Saruman believes it is only great power that can hold evil in check, but that is not what I have found. I found it is the small everyday deeds of ordinary folk that keep the darkness at bay. Small acts of kindness and love. Why Bilbo Baggins? I don't know. Perhaps because I am afraid, and he gives me courage.
In other words, the shorties give other people courage with kindness and love. Bahahahahaha.