Previously noted as 'supplementary mark' in 2013, Paul, who was on the verge of reaching the peak of his life, was suddenly diagnosed with stage four lung cancer. From that moment, he began to document the remainder of his life from both the perspectives of a doctor and a patient, reflecting on medicine and humanity. His articles were published in 'The New York Times', 'The Washington Post', and other media, captivating a global audience. The writing in this book is beautifully crafted and deeply sincere, containing profound contemplations on humanity, life and death, and medicine that have deeply moved countless readers worldwide.