All wealth consists of desirable things; that is, things which satisfy human wants directly or indirectly: but not all desirable things are reckoned as wealth.
Alfred MarshallPolitical Economy or Economics is a study of mankind in the ordinary business of life.
Alfred MarshallThe hope that poverty and ignorance may gradually be extinguished derives indeed much support from the steady progress of the working classes during the 19th century.
Alfred MarshallBut if inventions have increased man's power over nature very much, then the real value of money is better measured for some purposes in labour than in commodities.
Alfred Marshall