I would myself like better, in order of thought, to consider motion as a
mode of heat than heat as a mode of motion; still, granting that we have
got thus far, we have yet to ask, What is heat? or what is motion? What
is this "primo mobile," this transitional power, in which all things
live, and move, and have their being? It is by definition something
different from matter, and we may call it as we choose, "first cause," or
"first light," or "first heat;" but we can show no scientific proof of
its not being personal, and coinciding with the ordinary conception of a
supporting spirit in all things.
59. Still, it is not advisable to apply the word "spirit" or "breathing"
to it, while it is only enforcing chemical affinities; but, when the
chemical affinities are brought under the influence of the air, and of
the sun's heat, the formative force enters and entirely different phase.
It does not now merely crystallize indefinite masses, but it gives to
limited portions of matter the power of gathering, selectively, other
elements proper to them, and binding those elements into their own
peculiar and adopted form.
Pages:
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95