Financial services are the economic services provided by the finance industry, which encompasses a broad range of businesses that manage money, including credit unions, banks, credit-card companies, insurance companies, accountancy companies, consumer-finance companies, stock brokerages, investment funds, individual managers and some government-sponsored enterprises. Financial services companies are present in all economically developed geographic locations and tend to cluster in local, national, regional and international financial centers such as London, New York City, and Tokyo.
And I sincerely believe, with you, that banking establishments are more dangerous than standing armies; and that the principle of spending money to be paid by posterity, under the name of funding, is but swindling futurity on a large scale.
Thomas Jefferson, 3rd US President, in a letter to John Taylor in 1816 .
The study of money, above all other fields in economics, is one in which complexity is used to disguise truth or to evade truth, not to reveal it.
John Kenneth Galbraith, Money: Whence it came, where it went (1975), p. 15.