Leo Strauss, in his analysis of the Chapter 10, “That contrary to the vulgar opinion, Money is not the Sinews of War,” in Discourses on Livy by Niccolò Machiavelli, makes the following observations:
“Almost exactly in the center of the Discourses, Machiavelli tries to prove, as he indicates at the outset in the heading of the chapter in question, that money is not the sinews of war, as it is thought to be by common opinion. After thus openly challenging common opinion in the very heading of the chapter, and refuting that opinion within the chapter, he turns, near the end of the chapter, to the authority of Livy: "But Titus Livius is a truer witness to this opinion than anyone else. In the place where he discusses whether Alexander the Great, if he had come to Italy, would have vanquished the Romans, he shows that three things are necessary in war: many good soldiers, prudent captains and good luck. Examining there whether the Romans or Alexander were superior in these things, he then draws his conclusion without ever mentioning money." Livy does not mention money in a context in which he would have mentioned it if he had regarded it as important. This fact by itself establishes not only a vague presumption in favor of Livy's having held the sound opinion on the subject of money; it makes him the truest witness, the most important authority for that opinion. Livy's silence is more impressive than his explicit statement would have been. Livy reveals an important truth most effectively by silence. The rule which Machiavelli tacitly applies can be stated as follows: if a wise man is silent about a fact that is commonly held to be important for the subject he discusses, he gives us to understand that that fact is unimportant. The silence of a wise man is always meaningful. It cannot be explained by forgetfulness. The view from which Livy deviates is the common view. One can express one's disagreement with the common view by simply failing to take notice of it; this is, in fact, the most effective way of showing one's disapproval.”The above passage is from Strauss’s book Thoughts on Machiavelli, Chapter 1, “The Twofold Character of Machiavelli’s Teachings.” (Page 30).