
Human capital
Gary Becker (1930–2014)
Nobel laureate (economic science, 1992)
University of Chicago
“I tell you what it does take: it takes a clear mind.”
Jackson Browne, Running on Empty, 1977

Certainly not the first word on the subject and clearly not the last, just the best.
Described by leading educational economist and renowned economic historian Mark Blaug as "the leading theoretical work on this subject" (Sweetland, 1996)