Li Po (AD 701-62) and Tu Fu (AD 712-70) were devoted friends who are traditionally considered to be among China's greatest poets. Li Po, a legendary carouser, was an itinerant poet whose writing, often dream poems or spirit-journeys, soars to sublime heights in its descriptions of natural scenes and powerful emotions. His sheer escapism and joy is balanced by Tu Fu, who expresses the Confucian virtues of humanity and humility in more autobiographical works that are imbued with great compassion and earthy reality, and shot through with humour. Together these two poets of the T'ang dynasty...