ination_ for a while, but he is not _persistent in
character_. He might clench his teeth, stiffen his body, and plunge into
the surf to rescue a drowning person; but his first resolution to
effect the rescue would be weakened by the cold water and by fear. He
lacks the quality of the bulldog that will die rather than loose its
teeth from another dog's throat.

[Sidenote: Muscles Express and Impress Ideas]

The coordinated muscles _express_ the mental attitude, as we have
perceived; and equally they _impress_ the mind with _their_ attitude. If
you have a sagging chin, you are incapable of the mental bulldog grip of
persistence. So _tighten up your jaw muscles, and never let them hang
utterly loose_, if you are resolved to develop the characteristic of
"stick-to-it-iveness." _Begin_ with _muscle_ training, for your muscles
must be utilized to start the process of building up your brain-mind
center of persistence.

[Sidenote: Developing Perception]

When you train the particular sense muscles that transmit external
_impressions_ to a particular brain-mind unit (the same muscles that
reflexively _express_ the ideas of that one part of your multiplex ego)
you may be absolutely _sure_ of developing a particular related
characteristic. For example, if you want to sharpen your _perceptive_
faculties so that you will see with the _eyes of your mind_ much more
than the _ordinary_ man perceives, exercise your _physical_ eyes in
taking snap-shots that you can see clearly in detail _with your
imagination_ when you look away from an object after a glance at it. Try
glancing at the furnishings of your room, then shut your eyes and
construct a mental picture. When this is definitely clear to you, open
your eyes. The reality will be very different from your imagined
picture. But _sharpen your perceptive faculties_, develop a "camera
eye;" then the reality will be exactly impressed on your mind. Witnesses
in court often contradict one another, in all honesty, simply because
their ability to perceive actualities is not highly developed. In
consequence, they get false mental impressions of happenings or things
they severally have seen.

[Sidenote: Three Processes Of Mental Development]

There are but three _processes_ of mental development:

The first process comprises _getting information_ from a _sense_ to its
associated _brain center_, which then makes the _mind_ center conscious
that particular information has been transmitted