This book title derives from Henley's most famous poem 'Invictus', which has been used as the name of a Hollywood film and for the International Paralympic Games sport event created by Britain's Prince Harry. The poem's stanzas have been popularised by Winston Churchill, Aung San Suu Ky and President Obama, and used to literary effect by C. S. Lewis, Oscar Wilde and in Casablanca. But this fine short lyric has unfortunately overshadowed Henley's other...