"My work on human capital began with an effort to calculate both private and social rates of return to men, women, blacks, and other groups from investments in different levels of education"
This quote is written / told by Gary Becker somewhere between December 2, 1930 and today. He/she was a famous Economist from USA.
The author also have 6 other quotes.
"I was married to Margaret Joan Howe in 1940. Although not a scientist herself she has contributed more to my work than anyone else by providing a peaceful and happy home"