[55] Diog. L. vii 121.

[56] τέλος ἐστὶν οὗ ἕνεκα πάντα πράττεται καθηκόντως, αὐτὸ δὲ πράττεται οὐδενὸς ἕνεκα Stob. ii 7, 3 b.

[57] ‘virtus nihil aliud est quam animus quodammodo se habens’ Sen. Ep. 113, 2; ‘virtus est adfectio animi constans conveniensque’ Cic. Tusc. disp. iv 15, 34.

[58] In numerous variations: for the present it is sufficient to quote Cicero’s phrase ‘convenienter naturae vivere’ Fin. iii 9, 31, etc., and from Seneca ‘virtus secundum naturam est; vitia inimica et infesta sunt’ Ep. 50, 8. Cf. also ‘we ought to go to be instructed, in order that we may maintain our minds in harmony with the things that happen’ Epict. Disc. i 12, 17.

[59] ‘[virtus] habebit illud in animo vetus praeceptum: deum sequere’ Sen. Dial. vii 15, 5.

[60] ‘ipsa virtus brevissime recta ratio dici potest’ Cic. Tusc. disp. iv 15, 34.

[61] ‘virtutis definitio est—habitus consentiens vitae’ Comm. in Lucan. ii 380 (Arnim iii 199).

[62] ‘perfecta virtus aequalitas [est] ac tenor vitae per omnia consonans sibi’ Sen. Ep. 31, 8.

[63] ‘ante omnia hoc cura, ut constes tibi’ ib. 35, 4.

[64] ‘virtus convenientia constat: omnia opera eius cum ipsa concordant et congruunt’ ib. 74, 30.