"Diamonds On the Inside" is a song by American artist Ben Harper. It was released in April 2003 as the second single from his album, Diamonds On the Inside.
The verse "A candle throws its light into the darkness In a nasty world so shines a good deed" demonstrates the importance of Shakespeare in Harper's references; it comes from the famous play The Merchant of Venice: "How far that little candle throws his beams! So shines a good deed in a naughty world."