e are in a perfect correspondence with the
advancing requirements of human life.

The deeper researches of science are revealing the absolute unity of the
entire universe. The earth and the most remote stars are composed of the
same matter. The wonderful discovery of spectrum analysis by Kirchoff
and Bunsen in 1861 has shown that the whole stellar universe is made up
of the same chemical materials as those with which we are familiar upon
the earth. A part of the dazzling brilliance of the noonday sun is due
to the vapor of iron floating in his atmosphere, and the faint
luminosity of the remotest cloudlike nebula is the glow of just such
hydrogen as enters into every drop of water that we drink....

"... The generalization of the metamorphosis of forces, which was begun a
century ago by Count Rumford when he recognized heat as a mode of
molecular motion, was consummated about the middle of the century, when
Doctor Joule showed mathematically just how much heat is equivalent to
just how much visible motion, and when the researches of Helmholtz,
Mayer, and Faraday completed the grand demonstration that light and heat
and magnetism and electricity and visible motion are all interchangeable
one into the other, and are continually thus interchanging from moment
to moment."

It is not a far cry from these scientific data to the recognition that
force, in all its various forms of manifestation, proceeds from the same
energy, and that the curious manifestation of it in radium is explained
by the possibility that this substance is merely a remarkable conductor
of this intense energy in the ether. The human organism may make itself
increasingly a conductor and transmitter of this energy, and the secret
of coming into perfectly harmonious relations with this energy is the
secret of all achievement. "Life is a search after power," says Emerson,
"and this is an element with which the world is so saturated,--there is
no chink or crevice in which it is not lodged,--that no honest seeking
goes unrewarded.... All power," he adds, "is of one kind; a sharing of
the nature of the world."

With his characteristically marvellous insight, Emerson has, in this
paragraph, recognized the truth that, in these latter days, is a matter
of absolute scientific discovery.

The "life that now is and that which is to come" are no more definitely
separable than are the periods of childhood and youth, or youth and
manhood. The advance is by evolutiona