continue. Nothing but the
discovery and rise of a serum that will destroy the germs of national
selfishness and avarice will prevent war. Possibly it stimulates
activity in invention, discovery, trade and commerce, but of what avail
is it if the cycle returns again from peace to war and these products
of increased activity are turned to the destruction of civilization?
Does not the world need a baptism of common sense? Some gain is being
made in the changing attitude of mind toward the warrior in favor of
the great scientists of the world. But nothing will be assured until
the hero-worship of the soldier gives way to the respect for the
scholar, and ideals of truth and right become mightier than the sword.

_Scientific Progress Is Cumulative_.--One discovery leads to another,
one invention to others. It is a law of science. Science benefits the
common man more than does politics or religion. It is through science
that he has means of use and enjoyment of nature's progress. It is
true this is on the side of materialistic culture, and it does not
provide all that is needed for the completed life. Even though the
scientific {471} experiments and discoveries are fundamentally more
essential, the common man cannot get along without social order,
politics, or religion.

Perhaps we can get the largest expression of the value of science to
man through a consideration of the inventions and discoveries which he
may use in every-day life.[6] Prior to the nineteenth century we have
to record the following important inventions: alphabetic writing,
Arabic numbers, mariner's compass, printing, the telescope, the
barometer and thermometer, and the steam-engine. In the nineteenth
century we have to record: railroads, steam navigation, the telegraph,
the telephone, friction matches, gas lighting, electrical lighting,
photography, the phonograph, electrical transmission of power, Roentgen
rays, spectrum analysis, anaesthetics, antiseptic surgery, the
airplane, gasoline-engine, transmission of news by radio, and
transportation by automobile. Also we shall find in the nineteenth
century thirteen important theoretical discoveries as compared with
seven in all previous centuries.

It is interesting to note what may have taken place also in the last
generation. A man who was born in the middle of the last century might
reflect on a good many things that have taken place. Scientifically he
has lived to see the development of el