"The hypocrite strives to assume emotions which he does not feel.
"The man gifted with cool-headedness is intent on never allowing them to be seen.
"It keeps his adversary in ignorance of the effect produced by his reasoning and allows him to take his chance, until the moment when, in spite of this feigned indifference, he reveals himself and permits his mind to be seen.
"Now, to know the designs of a rival, when he is ignorant of those that we have conceived, is one of the essential factors of success.
"In every way, he who is informed about the projects of his adversary walks preceded by a torch of light, while the adversary, if he can not divine his opponent's plans, continues to fight in darkness."
The most elementary common sense counsels then cool-headedness when exchanging ideas, even when the discussion is of quite an amicable nature.
From this habit there will result a very praiseworthy propensity to exercise self-control, which is only a sort of superior cool-headedness.
It is also the cause of a noble pride, because it is more difficult to win a victory over one's passions than to conquer ordinary enemies, and he who, with the support of common sense, succeeds in ruling himself, can calculate, without arrogance, the hour when he will reign over the minds of others.
LESSON XII
COMMON SENSE DOES NOT EXCLUDE GREAT ASPIRATIONS
"A very common error," says Yoritomo, "is that which consists in classifying common sense among the amorphous virtues, only applicable to things and to people whose fundamental principle is materiality.
"This is a calumny which is spread broadcast by fools who scatter their lives to the four winds of caprice and extravagance.
"Not only does common sense not exclude beauty, but it really aids in its inception and protects its growth by maintaining the reasons which produced its appearance.
"Without it, the reign of the most admired things would be of short duration, granting that the want of logic had not prevented their production.
"What is there more commendable than the love of work, devotion to science, ambition to succeed?
"Could all this exist if common sense did not intervene to permit the development of the deductions on which are based the resolutions that inspired in us these aspirations.
"But this is not all; without logic, which permits us to give them solidity, the most serious resolutions would soon become nothing but vague projects, shattered as soon as formed.
"In common sense lies the cause and the object of things.
"It is common sense which makes us realize that difference that few persons are willing to analyze, and which lies between judgment and opinion.
"We almost always succeed in readily confounding them, and from this mistake results a too-frequent cause of failures.
"Opinion is a conviction which is capable of modification.
"In addition to this, as it is based on mere indications and probability, it is rarely free from the personal element.
"Opinion depends upon the favorite inclination, upon the mood of the moment, upon sundry considerations, which direct it almost always toward the desired solution.
"Also it depends often on thoughtfulness or on the inexactness of the initial representation, which we are pleased to disguise slightly at first, then little by little to color in accordance with our desires.
"Falsehood does not necessarily enter into this process of tricking things out; it is, three-quarters of the time, the result of an illusion which we are prone to perpetuate within us.
"We are too often in the position of the three wise men who, while rummaging in an old sarcophagus, discovered a vase whose primitive function they were unable to determine with any certainty.
"One of them was a poet and an idealist.
"The second only prized positive things.
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