This week, Sunday Half Hour marks the 100th birthday of Mother Teresa of Calcutta. Brian D'Arcy looks at the life of this remarkable woman and the example she set in dedicating her life to the service of others. Music comes from the choir of St Martin-in-the-Fields in central London and hymns include Go Forth And Tell, Ye That Know The Lord Is Gracious and Take My Life And Let It Be. The musical director is Andrew Earis and the organist is Martin Friend.