My mother taught us how to retain our normality, says Prince William

Diana, Princess of Wales taught her sons to keep their feet on the ground and stay "normal", Prince William has revealed.

The comments by the second in line to the throne were made during a documentary about the prince, in which he repeated his desire to serve on the front line in Afghanistan.

In a Sky 1 documentary chronicling his trip to Botswan this year, Prince William's Africa, William, 28, said he and his brother Harry, 26, were schooled by their mother to remain in touch with reality - something he has tried to maintain.