IV. 8, 11, 24, 57, 82. _Quasi mortis_: a trans. of Stoic παθεσι, which Cic. rejects in _D.F._ III. 35. _Voluit carere sapientem_: emotion being a disturbance of equilibrium in the reason, and perfect reason being virtue (20), it follows that the Stoic sapiens must be emotionless (Zeller 228 sq.). All emotions are reasonless; ‛ηδονη or _laetitia_ for instance is αλογος επαρσις. (_T.D._ Books III. and IV. treat largely of the Stoic view of emotions.) Wesenberg, _Em._ to the _T.D._ III. p. 8, says Cic. always uses _efferri laetitia_ but _ferri libidine_. §39. _Aliaque in parte_: so Plato, _Tim._ 69 C, _Rep._ 436, 441, Arist. _De Anima_ II. 3, etc.; cf. _T.D._ I. 20. _Voluntarias_: the whole aim of the Stoic theory of the emotions was to bring them under the predominance of the will. How the moral freedom of the will was reconciled with the general Stoic fatalism we are not told. _Opinionisque iudicio suscipi_: all emotion arose, said the Stoics, from a false judgment about some external object; cf. Diog. VII. 111. τα παθη κρισεις ειναι. Instances of each in Zeller 233. For _iudicio_ cf. _D.F._ III. 35, _T.D._ III. 61, IV. 14, 15, 18. _Intemperantiam_: the same in _T.D._ IV. 22, Gk. ακολασια, see Zeller 232. _Quintam naturam_: the πεμπτη ουσια or πεμπτον σωμα of Aristotle, who proves its existence in _De Coelo_ I. 2, in a curious and recondite fashion. Cic. is certainly wrong in stating that Arist. derived _mind_ from this fifth element, though the finest and highest of material substances. He always guards himself from assigning a material origin to mind. Cic. repeats the error in _T.D._ I. 22, 41, 65, _D.F._ IV. 12. On this last passage Madv. has an important note, but he fails to recognise the essential fact, which is clear from Stob. I. 41, 33, that the Peripatetics of the time were in the habit of deriving the mind from αιθηρ, which is the very name that Aristotle gives to the fifth element (σωμα αιθεριον in the _De Coelo_), and of giving this out to be Aristotle's opinion. The error once made, no one could correct it, for there were a hundred influences at work to confirm it, while the works of Aristotle had fallen into a strange oblivion. I cannot here give an exhaustive account of these influences, but will mention a few. Stoicism had at the time succeeded in powerfully influencing every other sect, and it placed νους εν αιθερι (see Plutarch, qu. R. and P. 375). It had destroyed the belief in immaterial existence The notion that νους or ψυχη came from αιθηρ was also fostered by the language of Plato. He had spoken of the soul as αεικινητος in passages which were well known to Cic. and had taken great hold on his mind One from the _Phaedrus_ 245 C is translated twice, in _Somnium Scipionis_ (_De Rep._ VI.), and _T.D._ I. 53 sq. Now the only thing with Aristotle which is αεικινητος in eternal perfect circular motion (for to the ancients circular motion is alone perfect and eternal), is the αιθηρ or πεμπτον σωμα, that