Mental discipline

Definition and stakes

Nicolas August Ludwig Jacob Johannsen,  Popular Science Monthly (1875)

“ Discipline, habit, and character, appear to be activity crystallized in seeking adaptation to our environments. What is the truth that stands out in relief? Clearly, that character, habit, and discipline, are the reflex upon ourselves of activity, moral, mental, or physical. Whence it seems to follow that useless or vicious activity will appear as useless or vicious character and discipline. ”
Source: Wikisource

Nicolas August Ludwig Jacob Johannsen,  Popular Science Monthly (1875)

“ By mental discipline we mean nothing more than habit of mental action. The disciplined mind does not differ in kind from the undisciplined any more than the strength of a man differs in kind from the strength of a child. It is evident that the best mental discipline must be that which prepares the mind to grasp and direct the facts, realities, and influences, on which human well-being depends.
It is thought that there is study which gives mental power or discipline, while it results in little useful knowledge.
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Source: Wikisource

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