The author refers to “history” (line 15) in order to

Questions are based on the following passage.

            The onset of the industrial era brought
            with it a new governing class, as every
            considerable change in human environment
            must bring with it a governing class to give
(5)        it expression. Perhaps, for lack of a
            recognized name, I may describe this class
            as the industrial capitalistic class, composed
            in the main of administrators and bankers.
            As nothing in the universe is stationary, ruling
(10)       classes have their rise, culmination, and
            decline, and I conjecture that this class
            attained its acme of popularity and power,
            at least in America, toward the close of the
            third quarter of the nineteenth century.
(15)       History may not be a very practical study,
            but it teaches some useful lessons, one of
            which is that nothing is accidental, and that
            if men move in a given direction, they do so
            in obedience to an impulsion as automatic
(20)       as is the impulsion of gravitation. I harbor no
            doubt that the equilibrium of society is very
            rapidly shifting, and seeks a new centre of
            social gravity. Industrialism has induced
            conditions which can no longer be controlled
(25)       by the old capitalistic methods, and that the
            country must be brought to a level of
            administrative efficiency competent to deal
            with the strains and stresses of the twenty
            -first century, just as, a couple of hundred
(30)       years ago, it was brought to an administrative
            level competent for that age, by the adoption
            of the Constitution.