this subject of conditions; but facts are stubborn things, and "A physical
fact is as sacred as a moral principle." "The sources of all phenomena, the
sources of all life, intelligence and love, are to be sought in the
internal--the spiritual realm; not in the external or material." "A man is
considerably out of date who says he does not believe a thing, simply
because he cannot do that thing or does not understand how the thing is
done. There are three classes of people--the 'wills,' the 'won'ts,' and the
'can'ts': the first accomplish everything, the second oppose everything,
and the third fail in everything." These things [these conditions] can be
understood and fully appreciated by investigation only. There is no
absolute definite knowledge in this world except that gained from
experience.

The voice in correct use is always tuned like an instrument. This must be
in order to have resonance and freedom, and this is done only through
natural or automatic adjustment of all the parts. In singing there are
always two forces in action, pressure and resistance, or motor power and
control. In order to have automatic adjustment these two forces must
prevail. When the organ of sound is automatically adjusted, the breath
bands approximate: This gives the true resisting or controlling force. When
the breath bands approximate we have inflation of the ventricles of the
larynx, the most important of all the resonance cavities, for when this
condition prevails we have freedom of tone, and the inflation of all other
cavities. And not only this; it also enables us to remove all restraint or
interference from the parts above the larynx, and especially from the
intrinsic and extrinsic muscles of the throat. This automatic adjustment,
approximation of the breath bands and inflation of the ventricles, gives us
a yet more important condition, namely, automatic breath control; this is
beyond question the most important of all problems solved for the singer
through this system of flexible vitalized movements.