The most valuable of all capital is that invested in human beings.

Economists
Alfred Marshall
Born in London 1842, Marshall founded neoclassical economics. Principles of Economics (1890) unified supply-demand analysis with marginal utility, creating the framework underpinning microeconomics.
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Alfred Marshall's Other Quotes
Nature's action is complex: and nothing is gained in the long run by pretending that it is simple.
Economics is the study of mankind in the ordinary business of life.
We might as reasonably dispute whether it is the upper or the under blade of a pair of scissors that cuts a piece of paper, as whether value is governed by utility or cost of production.
Related Quotes
I shall run wild for six months to a year, but I have utterly no confidence for the second and third years.
-- Isoroku Yamamoto
Do not give things to children; give them hardship.
-- Nogi Maresuke
Nothing is more powerful than an idea whose time has come.
-- Victor Hugo
Economics deals with society's fundamental problems; it concerns everyone and belongs to all. It is the main and proper study of every citizen.
-- Ludwig von Mises
Science is the great antidote to the poison of enthusiasm and superstition.
-- Adam Smith
Heaven does not create one person above or below another.
-- Fukuzawa Yukichi