[43] There are cases where we must simply accept or reject without proof: either when Principles are propounded which are prior to all reasoning, or when particular facts are brought before us which are simply matters of [Greek: agsthaesis]. Aristotle here brings both these cases within the province of [Greek: nous], i.e. he calls by this name the Faculty which attains Truth in each.
[44] i.e. of the [Greek: syllogisimai ton prakton].
[45] See the note on [Greek: Archae] on p. 4,1 30. As a matter of fact and mental experience the Major Premiss of the Practica Syllogism is wrought into the mind by repeatedly acting upon the Minor Premiss (i.e. by [Greek: ethismos]).
All that is pleasant is to be done,
This is pleasant,
This is to be done
By habitually acting on the Minor Premiss, i.e. on the suggestions of [Greek: epithymia], a man comes really to hold the Major Premiss. Aristotle says of the man destitute of all self-control that he is firmly persuaded that it is his proper line to pursue the gratification of his bodily appetites, [Greek: dia to toioytos einai oios diokein aytas]. And his analysis of [Greek: akrasia] (the state of progress towards this utter abandonment to passion) shows that each case of previous good resolution succumbing to temptation is attributable to [Greek: epithymia] suggesting its own Minor Premiss in place of the right one. Book VII. 8 and 5.
[46] The consequentia is this:
There are cases both of principles and facts which cannot admit of reasoning, and must be authoritatively determined by [Greek: nous]. What makes [Greek: nous] to be a true guide? only practice, i.e. Experience, and therefore, etc.
[47] This is a note to explain [Greek: hygieina] and [Greek: euektika], he gives these three uses of the term [Greek: hygieinon] in the Topics, I. xiii. 10,
{ [Greek: to men hygieias poiætikon], [Greek: hygieinon legetai]
{ [Greek: to de phylaktikon],
{ [Greek: to de sæmantikon].
Of course the same will apply to [Greek: euektikon].
[48] Healthiness is the formal cause of health.
Medicine is the efficient cause of health.
See Book X. chap. iv. [Greek: hosper oud hæ hygieia kai ho iatros homoios aitia esti tou ugiainein].