When Christopher Matthew was six, the poems of Milne always reassured him that other children were as naughty as he was, so on reaching sixty he decided that he should adapt Now We Are Six for an older audience. Now We Are Sixty is often hilarious, sometimes rueful and always thought-provoking. Some verses are about realising we are not as young as we thought, while some are about the more disconcerting problems of modern life;...