Aristotle discovers that the best possible has already been obtained (Hacker 76). All that can be done is to try to improve on the existing one.
Plato's utopia consists of three distinct, non-hereditary class systems (Hacker 32). The Guardians consist of non-ruling Guardians and ruling Guardians. The non-rulers are a higher level of civil servants and the ruling is the society's policy makers (Hacker 32). Auxiliaries are soldiers and minor civil servants (Hacker 32). Finally the Workers, are composed of farmers and artisans, most commonly unskilled laborers (Hacker 32). The Guardians are to be wise and good rulers. It is important that the rulers who emerge must be a class of craftsmen who are public-spirited in temperament and skilled in the arts of government areas (Hacker 33). The guardians are to be placed in a position in which they are absolute rulers. They are supposed to be the select few who know what is best for society .
(Hacker 33). .
Aristotle disagrees with the idea of one class holding discontinuing political power (Hacker 85). The failure to allow circulation between classes excludes those men who may be ambitious, and wise, but are not in the right class of society to hold any type of political power (Hacker 85). Aristotle looks upon this ruling class system as an ill-conceived political structure (Hacker 86). He quotes "It is a further objection that he deprives his Guardians even of happiness, maintaining that happiness of the whole state which should be the object of legislation," ultimately he is saying that Guardians sacrifice their happiness for power and control. Guardians who lead such a strict life will also think it necessary to impose the same strict lifestyle on the society it governs (Hacker 86). .
Aristotle puts a high value on moderation (Hacker 81). Many people favor moderation because it is part-liberal and part-conservative. There is so much of Plato's utopia that is undefined and it is carried to extremes that no human being could ever fulfill its requirements (Hacker 81).