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Atomic War: The Influence of Lucretius on Machiavelli’s Art of War
1. Introduction
Sergio Bertelli first wrote of the 1961 discovery in the Vatican Library of Machiavelli’s hand transcription of De rerum natura (Rossiana 884),1 which contained a copy of Lucretius’ text bound with the Eunech of Terence.2 Scholars accept that Machiavelli began transcribing his copy of Lucretius’ De rerum natura around 1497.3 Alison Brown, Paul Rahe, Robert Roecklein, Ada Palmer, and Vittorio Morfino, among others, have argued convincingly that the influence of Lucretius and Epicurean philosophy can be discerned in Machiavelli’s texts like the Discourses, the Prince, the Florentine Histories, and his long poem, The Golden Ass, and that Machiavelli’s notions of free will, religion, and natural philosophy exhibit Epicurean influence.
For instance, Brown argues that Lucretius’ influence on Machiavelli spans his works and shows up especially in Machiavelli’s reasoning on ethical themes.4 Weighing the marginal notations Machiavelli made in the De rerum natura,5 Brown establishes numerous parallels between the Roman poet and the Florentine, especially in their understandings of free will and the role they ascribe to religion as an instrument of politics. Brown’s analyses detect Lucretian influence throughout Machiavelli’s works, from texts like the Discourses to his plays, and she concludes that Lucretian Epicureanism forms the cornerstone of Machiavelli’s philosophy.6
Paul Rahe also argues that Lucretius influenced Machiavelli and locates in the Roman poet the reason for Machiavelli’s break from the Aristotelian political tradition. Rahe finds the clearest sign of Lucretian influence in Machiavelli’s repudiation of religion and natural teleology.7 In addition, he highlights passages where he sees Machiavelli to be critical of Lucretius and Epicureanism in general. For instance, Rahe hears irony behind Machiavelli’s setting the Art of War in the sheltered gardens of the Oricellari family given the observations the condottiere captain, Fabrizio Colonna, makes in Book 1 about the softness of those accustomed to fight in the shade. Rahe assembles evidence that Machiavelli would not support the withdrawal from political life necessary to achieve Epicurean ataraxía—i.e., the pleasures taken in calmness of mind and freedom from the pains of emotional disturbance advocated by both Lucretius in the De rerum natura and Epicurus as transmitted through Diogenes Laertius.8
Rahe goes further and argues that Machiavelli’s silence on the question of the famous Epicurean atomic swerve—the clinamen—should also be read as his rejection of this Epicurean position and his willingness to embrace natural determinism.9 However, Rahe does not work with Machiavelli’s transcription of the De rerum natura directly. Rahe’s analysis does not acknowledge Machiavelli’s marginal comments in Book 2 of De rerum natura, where Machiavelli clearly links the possibility of freedom of the will to Lucretius’ description of the atomic swerve.
On the other hand, Ada Palmer analyzes the fifty-four manuscripts of the De rerum natura that remain from this period, including Machiavelli’s manuscript. Her investigations show that Machiavelli is the only one of the Renaissance Lucretian annotators to include in his copy extensive marginal notes on the section of De rerum natura Book 2 that addresses the technical details of Epicurean atomistic physics, including the nature of the primordia and the discussion of the clinamen.10 Palmer’s study shows that Machiavelli was unusual among Renaissance transcribers of Lucretius in the attention he gave to passages in the De rerum natura that discuss atomistic natural principles like the clinamen.
Robert Roecklin would extend Palmer’s line of reasoning even further.11 Roecklin hears the reference to mixed bodies in these chapters as a challenge to approach Machiavelli’s philosophy “from the vantage point of the theory of body that underlies his philosophy.”12 For Roecklin, Machiavelli’s references to the physics of mixed bodies in these chapters are important because in them it is evident that Machiavelli relies upon Epicurean terminology.13
Vittorio Morfino argues that Machiavelli accepts the Epicurean physics of mixed bodies. Morfino contends that Lucretius and, following him, Machiavelli, adopt a notion of corporeality that subordinates considerations of a body’s form to its susceptibility to mutate and change. On Morfino’s reading of Lucretius, an individual body occurs as an event generated from the ongoing exchange of relations among the aggregated primordia that compose it and those in its environment that support it. Morfino argues that agency in a Lucretian context must be understood from this basic fact.14 For Morfino, Machiavelli’s narratives describe the actions of agents like Cesare Borgia from several different perspectives because multiple layers of different kinds of interacting bodies take part in the event. As with Roecklin, Morfino’s readings of Machiavellian exemplars like Borgia would depend greatly on accepting the thesis that Machiavelli unconditionally adopts Lucretian atomism.15
A notable lacuna in these analyses concerns the Art of War, composed during the same time period as these other texts. The difficulty of establishing potential lines of influence between the De rerum natura and the Art of War is compounded due to the highly technical nature of the discussions on warfare that dominate the latter text. Scholars often neglect the Art of War on the basis of its focus on the minutiae of Renaissance military practice, which they judge a limitation of the text when measured against Machiavelli’s more genuinely political works.
On the other hand, scholars like Gabriele Pedullà argue that the Art of War is critical to understanding Machiavelli’s notion of the political, not despite, but because of these highly technical discussions; argues Pedullà: “To be a good political leader is not enough, because you have to become a military expert as well: this is Machiavelli’s fundamental belief.”16 For Pedullà, Machiavelli’s obsession with saddle construction, the angle of wagon wheels, and the proper width of roads and ditches in fortified towns and encampments shows his concern for the “microphysics of action” and how the concrete domains of practice and discipline serve as vectors for understanding his political thought.17 Machiavelli’s attention to the filigree of warfare signals his conviction that the spheres of practice and discipline forge chains of association that map onto subjectivity itself.18 On this reading, military discipline acts as the foundation for the domain of subjectivity by generating, and then capturing, that domain.
Machiavelli’s historical concerns with the atomistic physics and psychology spelled out in the De rerum natura offer a powerful vantage point through which to re-examine Machiavelli’s treatment of the transformational power of military discipline as spelled out in the Art of War. This chapter and the next examine Fabrizio Colonna’s discussion of the differences between the phalanx form utilized by the Greeks and the Swiss and the manipular legion of the Romans in Books 2 and 3 of the Art of War from a Lucretian framework. This chapter investigates two points of contact with Lucretius that emerge from the mercenary captain’s analyses. First he favors his neo-Roman brigade over the Macedonian phalanx and Swiss pike squares on the basis of “its greater life,” which it owes to materialist principles immanent to its organization. Second, the greater effectiveness of the brigade over the phalanx consists in its capacity for renewing itself, a theme that links Machiavelli’s discussion of battalion organization to passages in the Discourses and the Florentine Histories where the Florentine’s reasoning also exhibits a strong atomist influence.
As we will see, of all Machiavelli’s texts, the Art of War most offers itself to being read as a project of Lucretian bioengineering.19 As a dialogue between young Florentines and a mercenary captain, it begins by enumerating the ills following from the current state of military affairs on the Italian peninsula that stem from the reliance princes and republics have on professional mercenary and auxiliary troops, or what he discusses exhaustively in the Prince and the Discourses as the dangers of relying on arma alienis. It concludes by relying on both narrative and diagrammatic elements to generate a function...