"And, even tho the sun shone, he would not hesitate to furnish himself with this accessory, which in fact will render him the greatest service. "This is precaution. "This quality is indispensable to the formation of the reasoning power; for, in addition to the necessity of foreseeing certain results, it permits also of directing their course, if it be impossible to exempt them completely. "Reasoning is the art of developing, to the highest degree, the suppositions resulting from deduction. "One is usually mistaken as to the exact meaning of the words 'to reason,' and people seldom attach the importance to them which they should. "One is apt to think that the gift of reasoning is bestowed upon every one. "Perhaps; but to reason, following the principles of justice and truth, is an operation which can only be performed by minds endowed with common sense. "In order to arrive at this result, it is essential to impress upon oneself the value of the words, 'to deduct accurately,' after having produced the radiation of thoughts which depend upon the object in question, and to foresee the consequences of the facts that a resolution could determine. "Above all, to avoid contentment with the approximate, which conceals many pitfalls under false appearances. "Without permitting oneself to express useless trivialities, not to neglect to become impregnated with those axioms which have been rightfully baptized, 'wisdom of nations.' "They are generally based on a secular observation, and are the product of many generations. "It would be puerile to attach vital importance to them, but one would surely regret having entirely scorned their counsel. "Too much erudition is at times detrimental to reason, based on common sense. Altho fully appreciating science, and devoting serious study to it, one would do well to introduce the human element into his knowledge. "There are some essential truths which modify daily life without, for this reason, lessening their importance. "Some of them are of premature development; others are of miniature growth. "To reason without offending common sense, it is, therefore, indispensable to consider time, place, environment, and all the contingencies which could arise to undermine the importance of reasoning." After having reviewed all these phases, we shall then extend, in accord with Yoritomo, the last blade of this rudimentary fan, and we shall find judgment. "This one is the index to that quality of mind called conviction. "This mental operation consists in drawing together many ideas that their relative characteristics may be determined. "This operation takes the place contiguous to reasoning, of which it is the result. "Judgment determines its character after having registered the reasons which ought to indicate its position; it deducts the conclusions imposed by the explanatory principle, and classifies the idea by submitting it to the valuation placed upon it by judgment.