J. B. S. Haldane (1892-64) was one of the scientific giants of the 20th century. A polymath who made important contributions to sciences ranging from physiology to genetics and biochemistry, he was also a highly skilled writer and an extraordinary character - brilliant, witty, idealistic, funny, and pugnacious. What I Require From Life is a compilation of his popular scientific essays written from the 1940s to last years of his life, that reflect not only his masterful ability to communicate scientific understanding, but also his deep commitment to socialism. The essays included here fall into two groups; those written by Haldane during the 1940s when he embraced Marxism, and those written during his last years in India (1957-64), and they range from An Autobiography in Brief (written three years before his death), to his Marxist view of evolution The Chicken or the Egg? , to his poignant poem Cancer is a Funny Thing. Edited with an introduction by Haldane's last graduate pupil, Professor Krishna Dronamraju, this collection of thought-provoking and beautifully-written science writing also comes with a Preface written by the late Sir Arthur C. Clarke, who provides a personal perspective on Haldane's unique place in 20th century science.