TEXCOCO, Mexico — Microsoft Chairman Bill Gates is famed for his philanthropy. Carlos Slim Helu, the Mexican tycoon, is not. This week, they stood together at a research center here, drawing attention to their different approaches to giving their wealth away.
Gates believes in philanthropy as gospel and urges the rich to donate much of their fortunes. Slim has been called a philanthro-skeptic. He is wary of charity.