发展经济学最终是为了改善人们的生活。
Development economics is ultimately about improving people's lives.
There is a way to be good again.
数学直觉常常指导算法的发展,但确保其正确性和效率的是严格的证明。
"The role of a leader is to create an environment where people can do their best work."
人独自行过生命,蒙受玷污,承担罪过,痛饮苦酒,寻觅出路。