The document discusses social entrepreneurship and the Bill and Melinda Gates Foundation. Social entrepreneurship uses business techniques to address social problems and benefit society. The Gates Foundation, founded in 2000, is the world's largest private foundation. It aims to enhance global healthcare and reduce extreme poverty through four programs - Global Development, Global Health, United States, and Global Policy and Advocacy. The programs focus on issues like financial services for the poor, agricultural development, water and sanitation, and sanitation innovations to create change. While Singapore is developed, many countries lack basic privileges, and social problems exist in both developed and developing nations.