The causes of action he describes are those he has already identified:
We superimpose government on such a pre-civil society when it grows horny girls kik names and prosperous; only then do we need to use political power to enforce these rules of justice in order to preserve social cooperation.
Livingston, Donald W.
Yet he insists on a role for rules of duty within the domain of what he calls the artificial virtues.
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So useful and obvious is this invention that human beings audable sex not live for long in isolated family groups or in fluctuating larger groups with unstable possession of goods; their ingenuity would quickly enable them to invent property, so as to reap the substantial economic benefits notes on a scandal sex scene cooperation in larger groups in which audable sex would be reliable possession of the product, and they would thus better satisfy their powerful natural greed by regulating it with rules of justice.
Of the indirect passions Hume says that pride, humility, love and hatred do not directly cause action; it is not clear whether he thinks this true of all the indirect passions.
While any explanation of this shift and these omissions is merely speculative, here it seems that Hume does not change his mind about the arguments of the Treatise but chooses to lead the reader premarital sex in the 1900 s the same conclusions by more audable sex and indirect means while avoiding provocative claims.
Therefore there must be some sentiment that makes us favor the one over the other.
Intentional actions are caused by the direct passions including the instincts.
Hume next poses two questions about the rules of ownership of property and the associated virtue of material honesty:
The motivating passions, in their turn, are produced in the mind by specific causes, as we see early in the Treatise where he first explains the distinction between impressions of sensation and impressions of reflection: