Mental operation

Definition and stakes

Portrait of Ralph Waldo Trine Ralph Waldo Trine,  The Higher Powers of Mind and Spirit

“ To think health and strength, to see ourselves continually growing in this condition, is to set into operation the subtlest dynamic force for the externalisation of these conditions in the body that can be even conceived of. If one's bodily condition, through abnormal, false mental and emotional habits, has become abnormal and diseased, this same attitude of mind, of spirit, of imagery, is to set into operation a subtle and powerful corrective agency that, if persisted in, will inevitably tend to bring normal, healthy conditions to the front again. ”
Source: Gutenberg

Portrait of William Benjamin Carpenter William Benjamin Carpenter,  Popular Science Monthly (1872)

“ This may give you an idea of the way in which Mental operations may be independent of the Will, and yet be under its direction. To this we shall presently come.
Now, those reflex actions of the spinal cord, which are immediately and essentially necessary to the maintenance of our lives, take place from the commencement without any training, without any education; they are what we call "instinctive actions;" the tendency to them is part of our nature; it is born with us.
”
Source: Wikisource

Portrait of Henry Putnam Stearns Henry Putnam Stearns,  Insanity: Its Causes and Prevention

“ Mental operations have been more or less active, as this is a necessity during the hours of consciousness, but they have proceeded in an exceedingly limited sphere of thought; they have gone on day after day in a few channels only, while the larger portion of that part of the brain which is connected with thought, or, more accurately speaking, many of the faculties of the mind, have been left in a comparatively undeveloped and inactive condition. ”
Source: Gutenberg

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