Vendeur : liu xing, Nanjing JiangSu, JS, Chine
paperback. Etat : New. Paperback. Pub Date: 2022-08-01 Pages: 896 Language: Chinese Publisher: Shanghai Jiaotong University Press. Jiangsu Phoenix Literature and Art Publishing House Things More Important than Hard Work Introduction What kind of life is happiness? How to live a happy life? The answer to the question starts with a cross-century happiness study In 1938. Harvard University conducted the longest life development study in Harvard history. tracking and recording 268 Harvard graduates and 456 poverty-stri.