harmoniously toward the regions of enduring success. First among these principles is—
Duty. A much-hackneyed word, I know, but it contains a rare jewel for him who will seek it by assiduous application. The principle of duty means strict adherence to one’s own business, and just as strict non-interference in the business of others. The man who is continually instructing others, gratis, how to manage their affairs, is the one who most mismanages his own.
Duty also means undivided attention to the matter in hand, intelligent concentration of the mind on the work to be done; it includes all that is meant by thoroughness, exactness, and efficiency. The details of duties differ with individuals, and each man should know his own duty better than he knows his neighbor’s, and better than his neighbor knows his; but although the working details differ, the principle is al-
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