2.: Purpose, a mode of will, means choice after deliberation. - Aristotle, The Nicomachean Ethics 
The Nichomachean Ethics of Aristotle, trans. F.H. Peters, M.A. 5th edition (London: Kegan Paul, Trench, Truebner & Co., 1893).
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- Preface to the Fifth Edition.
- Book I.: The End.
- 1.: In All He Does Man Seeks Same Good As End Or Means.
- 2.: The End Is the Good; Our Subject Is This and Its Science Politics.
- 3.: Exactness Not Permitted By Subject Nor to Be Expected By Student, Who Needs Experience and Training.
- 4.: Men Agree That the Good Is Happiness, But Differ As to What This Is.
- 5.: The Good Cannot Be Pleasure, Nor Honour, Nor Virtue.
- 6.: Various Arguments to Show Against the Platonists That There Cannot Be One Universal Good.
- 7.: The Good Is the Final End, and Happiness Is This.
- 8.: This View Harmonizes Various Current Views.
- 9.: It Happiness Acquired, Or the Gift of Gods Or of Chance?
- 10.: Can No Man Be Called Happy During Life?
- 11.: Cannot the Fortunes of Survivors Affect the Dead?
- 12.: Happiness As Absolute End Is Above Praise.
- 13.: Division of the Faculties and Resulting Division of the Virtues.
- Book II.: Moral Virtue.
- 1.: Moral Virtue Is Acquired By the Repetition of the Corresponding Acts.
- 2.: These Acts Must Be Such As Reason Prescribes; They Can’t Be Defined Exactly, But Must Be Neither Too Much Nor Too Little.
- 3.: Virtue Is In Various Ways Concerned With Pleasure and Pain.
- 4.: The Conditions of Virtuous Action As Distinct From Artistic Production.
- 5.: Virtue Not an Emotion, Nor a Faculty, But a Trained Faculty Or Habit.
- 6.: Viz., the Habit of Choosing the Mean.
- 7.: This Must Be Applied to the Several Virtues.
- 8.: The Two Vicious Extremes Are Opposed to One Another and to the Intermediate Virtue.
- 9.: The Mean Hard to Hit, and Is a Matter of Perception, Not of Reasoning.
- Book III.
- Chapters 1–5.: the Will.
- 1.: An Act Is Involuntary When Done (a) Under Compulsion, Or (b) Through Ignorance: (a) Means Not Originated By Doer, (b) Means Through Ignorance of the Circumstances: Voluntary Then Means Originated With Knowledge of Circumstances.
- 2.: Purpose, a Mode of Will, Means Choice After Deliberation.
- 3.: We Deliberate On What We Can Do—not On Ends, But Means.
- 4.: We Wish For
- 5.: Virtue and Vice Are Alike Voluntary, Our Acts Are Our Own; For We Are Punished For Them; If This Be Our Character, We Have Made It By Repeated Acts; Even Bodily Vices Are Blamable When Thus Formed. We Cannot Plead That Our Notion of Good Depends On Ou
- Chapters 6—12: the Several Moral Virtues and Vices.
- 6.: Of Courage and the Opposite Vices.
- 7. Of Courage (continued)
- 8. Of Courage Improperly So Called.
- 9.: How Courage Involves Both Pain and Pleasure.
- 10.: Of Temperance.
- 11. Of Temperance (continued)
- 12.: How Profligacy Is More Voluntary Than Cowardice.
- Book IV.: The Several Moral Virtues and Vices— Continued.
- 1.: Of Liberality.
- 2.: Of Magnificence.
- 3.: Of High-mindedness
- 4.: Of a Similar Virtue In Smaller Matters.
- 5.: Of Gentleness.
- 6.: Of Agreeableness.
- 7.: Of Truthfulness.
- 8.: Of Wittiness.
- 9.: Of the Feeling of Shame
- Book V.: The Several Moral Virtues and Vices— Concluded. Justice.
- 1.: Preliminary Two Senses of Justice Distinguished Justice (l) = Obedience to Law = Complete Virtue.
- 2.: Of Justice (2) = Fairness, How Related to Justice (1). What Is Just In Distribution Distinguished From What Is Just In Correction.
- 3.: Of What Is Just In Ditribution and Its Rule of Geometrical Proportion.
- 4.: Of That Which Is Just In Correction, and Its Rule of Arithmetical Proportion.
- 5.: Simple Requital Is Not Identical With What Is Just, But Proportionate Requital Is What Is Just In Exchange; and This Is Effected By Means of Money. We Can Now Give a General Definition of Justice (2).
- 6.: ( One Can Act Unjustly Without Being Unjust. ) That Which Is Just In the Strict Sense Is Between Citizens Only, For It Implies Law.
- 7.: It Is In Part Natural, In Part Conventional.
- 8.: The Internal Conditions of a Just Or Unjust Action, and of a Just Or Unjust Agent.
- 9.: Sundry Questions About Doing and Suffering Injustice
- 10.: Of Equity
- 11.: Can a Man Wrong Himself?
- Book VI.: The Intellectual Virtues.
- 1.: Must Be Studied Because (a) Reason Prescribes the Mean, (b) They Are a Part of Human Excellence. the Intellect Is (1) Scientific, (2) Calculative: We Want the Virtue of Each.
- 2.: The Function of the Intellect, Both In Practice and Speculation, Is to Attain Truth.
- 3.: Of the Five Modes of Attaining Truth: (1) of Demonstrative Science of Things Invariable.
- 4.: Of Knowledge of Things Variable, Viz. (2) of Art In What We Make;
- 5.: And (3) of Prudence In What We Do, the Virtue of the Calculative Intellect.
- 6.: (4) of Intuitive Reason As the Basis of Demonstrative Science.
- 7.: (5) of Wisdom As the Union of Science and Intuitive Reason. Comparison of the Two Intellectual Virtues, Wisdom and Prudence.
- 8.: Prudence Compared With Statesmanship and Other Forms of Knowledge.
- 9.: Of Deliberation.
- 10.: Of Intelligence
- 11.: Of Judgment of Reason Or Intuitive Perception As the Basis of the Practical Intellect.
- 12.: Of the Uses of Wisdom and Prudence. How Prudence Is Related to Cleverness.
- 13.: How Prudence Is Related to Moral Virtue
- Book VII.
- Chapters 1–10.: Characters Other Than Virtue and Vice.
- 1.: Of Continence and Incontinence, Heroic Virtue and Brutality. of Method. Statement of Opinions About Continence.
- 2.: Statement of Difficulties As to How One Can Know Right and Do Wrong.
- 3.: Solution: to Know Has Many Senses; In What Sense Such a Man Knows.
- 4.: Of Incontinence In the Strict and In the Metaphorical Sense.
- 5.: Of Incontinence In Respect of Brutal Or Morbid Appetites.
- 6.: Incontinence In Anger Less Blamed Than In Appetite.
- 7.: Incontinence Yields to Pleasure, Softness to Pain. Two Kinds of Incontinence, the Hasty and the Weak.
- 8.: Incontinence Compared With Vice and Virtue.
- 9.: Continence and Incontinence Not Identical With Keeping and Breaking a Resolution.
- 10.: Prudence Is Not, But Cleverness Is, Compatible With Incontinence.
- Chapters 11—14.: of Pleasure.
- 11.: We Must Now Discuss Pleasure. Opinions About It.
- 12.: Answers to Arguments Against Goodness of Pleasure. Ambiguity of Good and Pleasant. Pleasure Not a Transition, But Unimpeded Activity.
- 13.: Pleasure Is Good, and the Pleasure That Consists In the Highest Activity Is the Good. All Admit That Happiness Is Pleasant. Bodily Pleasures Not the Only Pleasures.
- 14.: Of the Bodily Pleasures, and the Distinction Between Naturally and Accidentally Pleasant.
- Book VIII.: Friendship Or Love.
- 1.: Uses of Friendship. Differences of Opinion About It.
- 2.: Three Motives of Friendship. Friendship Defined.
- 3.: Three Kinds of Friendship, Corresponding to the Three Motives Perfect Friendship Is That Whose Motive Is the Good.
- 4.: The Others Are Imperfect Copies of This.
- 5.: Intercourse Necessary to the Maintenance of Friendship.
- 6.: Impossible to Have Many True Friends.
- 7.: Of Friendship Between Unequal Persons and Its Rule of Proportion. Limits Within Which This Is Possible.
- 8.: Of Loving and Being Loved.
- 9.: Every Society Has Its Own Form of Friendship As of Justice. All Societies Are Summed Up In Civil Society.
- 10.: Of the Three Forms of Constitution.
- 11.: Of the Corresponding Forms of Friendship.
- 12.: Of the Friendship of Kinsmen and Comrades.
- 13.: Of the Terms of Interchange and Quarrels Hence Arising In Equal Friendships.
- 14.: Of the Same In Unequal Friendships.
- Book IX.: Friendship Or Love— Continued.
- 1.: Of the Rule of Proportion In Dissimilar Friendships.
- 2.: Of the Conflict of Duties.
- 3.: Of the Dissolution of Friendships.
- 4.: A Man’s Relation to His Friend Like His Relation to Himself.
- 5.: Friendship and Goodwill.
- 6.: Friendship and Unanimity
- 7.: Why Benefactors Love More Than They Are Loved.
- 8.: In What Sense It Is Right to Love One’s Self.
- 9.: Why a Happy Man Needs Friends.
- 10.: Of the Proper Number of Friends.
- 11.: Friends Needed Both In Prosperity and Adversity.
- 12.: Friendship Is Realized In Living Together.
- Book X.
- Chapters 1–5.: Pleasure.
- 1.: Reasons For Discussing Pleasure.
- 2.: Arguments of Eudoxus That Pleasure Is the Good.
- 3.: Argument That It Is Not a Quality; That It Is Not Determined; That It Is a Motion Or Coming Into Being. Pleasures Differ In Kind.
- 4.: Pleasure Defined: Its Relation to Activity.
- 5.: Pleasures Differ According to the Activities the Standard Is the Good Man.
- Chapters 6–9.: Conclusion.
- 6.: Happiness Not Amusement, But Life.
- 7.: Of the Speculative Life As Happiness In the Highest Sense.
- 8.: Of the Practical Life As Happiness In a Lower Sense, and of the Relation Between the Two. Prosperity, How Far Needed.
- 9.: How Is the End to Be Realized?
Purpose, a mode of will, means choice after deliberation.
Now that we have distinguished voluntary from involuntary acts, our next task is to discuss choice or purpose. For it seems to be most intimately connected with virtue, and to be a surer test of character than action itself.
It seems that choosing is willing, but that the two terms are not identical, willing being the wider. For children and other animals have will, but not choice or purpose; and acts done upon the spur of the moment are said to be voluntary, but not to be done with deliberate purpose.
Those who say that choice is appetite, or anger, or wish, or an opinion of some sort, do not seem to give a correct account of it.
In the first place, choice is not shared by irrational creatures, but appetite and anger are.
Again, the incontinent man acts from appetite and not from choice or purpose, the continent man from purpose and not from appetite.
Again, appetite may be contrary to purpose, but one appetite can not be contrary to another appetite.
Again, the object of appetite [or aversion] is the pleasant or the painful, but the object of purpose [as such] is neither painful nor pleasant.
Still less can purpose be anger (θυμός); for acts done in anger seem to be least of all done of purpose or deliberate choice.
Nor yet is it wish, though it seem very like; for we cannot purpose or deliberately choose the impossible, and a man who should say that he did would be thought a fool; but we may wish for the impossible, e.g. to escape death.
Again, while we may wish what never could be effected by our own agency (e.g. the success of a particular actor or athlete), we never purpose or deliberately choose such things, but only those that we think may be effected by our own agency.
Again, we are more properly said to wish the end, to choose the means; e.g. we wish to be healthy, but we choose what will make us healthy: we wish to be happy, and confess the wish, but it would not be correct to say we purpose or deliberately choose to be happy; for we may say roundly that purpose or choice deals with what is in our power.
Nor can it be opinion; for, in the first place, anything may be matter of opinion—what is unalterable and impossible no less than what is in our power; and, in the second place, we distinguish opinion according as it is true or false, not according as it is good or bad, as we do with purpose or choice.
We may say, then, that purpose is not the same as opinion in general; nor, indeed, does any one maintain this.
But, further, it is not identical with a particular kind of opinion. For our choice of good or evil makes us morally good or bad, holding certain opinions does not.
Again, we choose to take or to avoid a good or evil thing; we opine what its nature is, or what it is good for, or in what way; but we cannot opine to take or to avoid.
Again, we commend a purpose for its rightness or correctness, an opinion for its truth.
Again, we choose a thing when we know well that it is good; we may have an opinion about a thing of which we know nothing.
Again, it seems that those who are best at choosing are not always the best at forming opinions, but that some who have an excellent judgment fail, through depravity, to choose what they ought.
It may be said that choice or purpose must be preceded or accompanied by an opinion or judgment; but this makes no difference: our question is not that, but whether they are identical.
What, then, is choice or purpose, since it is none of these?
It seems, as we said, that what is chosen or purposed is willed, but that what is willed is not always chosen or purposed.
The required differentia, I think, is “after previous deliberation.” For choice or purpose implies calculation and reasoning. The name itself, too, seems to indicate this, implying that something is chosen before or in preference to other things.