They became the directing power in the life insurance companies, and other corporate reservoirs of the people’s savings-the buyers of bonds and stock… - Louis D. Brandeis

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They became the directing power in the life insurance companies, and other corporate reservoirs of the people’s savings-the buyers of bonds and stocks. They became the directing power also in banks and trust companies-the depositaries of the quick capital of the country-the life blood of business, with which they and others carried on their operations. Thus four distinct functions, each essential to business, and each exercised, originally, by a distinct set of men, became united in the investment banker. It is to this union of business functions that the existence of the Money Trust is mainly due.[1]