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The male has more teeth than the female in mankind, and sheep and goats, and swine. This has not been observed in other animals. Those persons which have the greatest number of teeth are the longest lived; those which have them widely separated, smaller, and more scattered, are generally more short lived.
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The first essential responsibility of the state is control of the market-place: there must be some official charged with the duty of seeing that honest dealing and good order prevail. For one of the well-nigh essential activities of all states is the buying and selling of goods to meet their mutual basic needs; this is the quickest way to self-sufficiency, which seems to be what moves men to combine under a single constitution.
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A line is not made up of points. ... In the same way, time is not made up parts considered as indivisible 'nows.'
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It is evident that the state is a creation of nature, and that man is by nature a political animal.
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All flatterers are mercenary, and all low-minded men are flatterers.
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Whether we will philosophize or we won't philosophize, we must philosophize.
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The knowledge of the soul admittedly contributes greatly to the advance of truth in general, and, above all, to our understanding of Nature, for the soul is in some sense the principle of animal life.
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A man who examines each subject from a philosophical standpoint cannot neglect them: he has to omit nothing, and state the truth about each topic.
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We are better able to study our neighbours than ourselves, and their actions than our own.
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Laws, when good, should be supreme; and that the magistrate or magistrates should regulate those matters only on which the laws are unable to speak with precision owing to the difficulty of any general principle embracing all particulars.
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Bravery is a mean state concerned with things that inspire confidence and with things fearful ... and leading us to choose danger and to face it, either because to do so is noble, or because not to do so is base. But to court death as an escape from poverty, or from love, or from some grievous pain, is no proof of bravery, but rather of cowardice.
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It is clearly better that property should be private, but the use of it common; and the special business of the legislator is to create in men this benevolent disposition.
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The goodness or badness, justice or injustice, of laws varies of necessity with the constitution of states. This, however, is clear, that the laws must be adapted to the constitutions. But if so, true forms of government will of necessity have just laws, and perverted forms of government will have unjust laws.
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Anger is always concerned with individuals, ... whereas hatred is directed also against classes: we all hate any thief and any informer. Moreover, anger can be cured by time; but hatred cannot. The one aims at giving pain to its object, the other at doing him harm; the angry man wants his victim to feel; the hater does not mind whether they feel or not.
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Democracy is when the indigent, and not the men of property, are the rulers.
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In the human species at all events there is a great diversity of pleasures. The same things delight some men and annoy others, and things painful and disgusting to some are pleasant and attractive to others.
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Happiness may be defined as good fortune joined to virtue, or a independence, or as a life that is both agreeable and secure.
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In inventing a model we may assume what we wish, but should avoid impossibilities.
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And so long as they were at war, their power was preserved, but when they had attained empire they fell, for of the arts of peace they knew nothing, and had never engaged in any employment higher than war.
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In bad or corrupted natures the body will often appear to rule over the soul, because they are in an evil and unnatural condition. At all events we may firstly observe in living creatures both a despotical and a constitutional rule; for the soul rules the body with a despotical rule, whereas the intellect rules the appetites with a constitutional and royal rule. And it is clear that the rule of the soul over the body, and of the mind and the rational element over the passionate, is natural and expedient; whereas the equality of the two or the rule of the inferior is always hurtful.
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A gentleman is not disturbed by anything.
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Anaximenes and Anaxagoras and Democritus say that its the earth's flatness is responsible for it staying still: for it does not cut the air beneath but covers it like a lid, which flat bodies evidently do: for they are hard to move even for the winds, on account of their resistance.
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There is nothing grand or noble in having the use of a slave, in so far as he is a slave; or in issuing commands about necessary things. But it is an error to suppose that every sort of rule is despotic like that of a master over slaves, for there is as great a difference between the rule over freemen and the rule over slaves as there is between slavery by nature and freedom by nature . . .
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For the more limited, if adequate, is always preferable.