Ben Macintyre

'The Man Who Never Was,' by Ewen Montagu, remains the best book about wartime espionage written by an active participant - incomplete, and dry in parts, it nonetheless summons up the ingenuity and sheer eccentricity of those who played this strange and dangerous game.

'What if?' history is a tricky game, but there is no doubt that the senior planners of D-Day - including Eisenhower and the British general Bernard Montgomery - believed that the Double Cross operation had played a pivotal role in the victory.

This celebration here tells me that this work is not hopeless. I thank you for this teaching with all my heart and lift my glass to human solidarity, to the ultimate victory of knowledge, peace, good-will and understanding.

A lot of times, when I go back to books I loved when I was young, I don't quite understand what it was that I loved about them. Rereading 'The Secret Garden,' I felt a lot like Mary feels when she visits her garden.