Having got these relative proportions well in our minds we may for a
brief time give our attention to an important scientific fact which is
necessary to our study. Our lives are entirely controlled by impulses
which originate in various parts of our personalities. Sometimes the
impulse comes from our bodies; again the feelings are in control, and
at times the memory asserts itself. Then again the intellect is the
dominating factor. OF THIS WE MAY BE SURE, FROM WHATEVER ELEMENT OF
BEING COMES THE STRONGEST IMPULSE, THERE FOR THE TIME BEING IS THE
SEAT OF GOVERNMENT. We are also scientifically certain, _that the more
finely attenuated an impulse is, and the more rapid the vibrations
are which carry such an impulse, the more powerful it is and the more
surely will it prevail over the slower impulses carried at a lower rate
of vibration_. A current of electricity of high voltage will melt a bar
of steel.