Ralph W. Emerson once said that “for every minute you are angry you lose sixty seconds of happiness” (Zubko 21). However, the feeling of anger is well-known to everyone; even the kindest people can become angry for a certain reason. Even some minor event or somebody’s glance and inappropriate word or statement can make a person angry. At the same time, anger is called one of the Seven Deadly Sins and the author says that anger has always aroused interest in human mind (Thurman unpaged). Philosophers are not exceptions to the rule, since ancient time they have been engaged in the search of the nature of anger. Thus, the present paper is devoted to the comparative analysis of the accounts of anger of Socrates and Seneca since their attitudes towards this emotion differ a lot. It is known that classical Greek philosophers “prioritized reason over emotion” (Lester 117), they were firmly convinced that anger had to be ruled and controlled by reason. Aristotle gives a definition of anger as “a desire, accompanied by pain, for a perceived revenge, on account of a perceived slight on the part of people who are not fit to slight one or one’s own” (Aristotle as cited in Braund and Moust 100). The philosopher wrote in his The Nicomachean Ethics that “anyone can become angry – that is easy. But to be angry with the right person, to the right degree, at the right time, for the right purpose, and in the right way – that is not easy” (Aristotle as cited in Lester 117). As it can be judged by the given quotation, the wiseman considers anger to be an appropriate emotion when it is reasonable and suitable for certain circumstances. Though there are conditions when anger is beneficial and useful, such as the feeling of anger that inspires the soldiers to fight abandoning hesitation and fear, Aristotle believes that the emotion of anger is constantly trying to evade the control of reason and, if it succeeds, this will definitely provoke the behavior that can be characterized as irrational and chaotic. In his opinion, ager can become destructive if it finds expression in punishment, vengeance, and retaliation (Lester 118). The point of view of the outstanding philosopher, Seneca, can be clearly observed in his essay that is entirely devoted to anger. The philosopher’s adherence to the ideals of Stoicism accounts for his concept of anger. Probably, the most eloquent Seneca’s statement pertaining to anger is that it is “most hideous and frenzied of all the emotions” (Seneca as cited in Thurman 41). The philosopher’s view differs from Aristotle’s idea of the possibility of control of anger by reason as he compares the emotion to temporal insanity and its uncontrolled nature is evident in this comparison. What is more, Seneca ascribes such qualities related to an angry man as obstinacy, groundlessness of actions, inability to differentiate fairness and truth, uncontrolled agitation. Seneca writes about the ability of anger to cast down and empty cities, he mentions “whole peoples condemned to death in an indiscriminate devastation” (Seneca as cited in Thurman 42). In fact, Seneca agrees with Aristotle on the definition of anger as the desire to pay back for the given pain. However, the philosophers’