-- UTARE: the second person of the present subjunctive hortative is very rare, excepting when, as here, the command is general. Had the command been addressed to a particular person, Cicero might have written _ne requisieris_. Cf. Madvig, Opusc. 2, 105; Roby, 1596; A. 266, _a, b_; G. 256, 2; H. 484, 4, n. 2. -- DUM ADSIT, CUM ABSIT: as both _dum_ and _cum_ evidently have here a temporal sense, the subjunctives seem due to the influence of the other subjunctives _utare_ and _requiras_. A. 342; G. 666; H. 529, II. and n. 1, 1). -- NISI FORTE: see n. on 18. -- CURSUS: for the metaphor cf. n. on 83; also Fam. 8, 13, 1 (a letter of Coelius) _aetate iam sunt decursa_; pro Quint. 99 _acta aetas decursaque_. For _certus_ cf. below, 72 _senectutis certus terminus_. -- AETATIS: here = _vitae_; see n. on 5. -- EAQUE: this is a common way of introducing with emphasis a fresh epithet or predicate. Often _idque_ (και τουτο) occurs, the pronoun being then adverbially used, and not in agreement with the subject. Cf. n. on 65 _illius quidem_; also _neque ea_ in 22. -- SIMPLEX: life is compared to a race, in which each man has to run once and only once around the course. -- TEMPESTIVITAS: 'seasonableness'; cf. 5 _maturitate tempestiva_, with n. -- INFIRMITAS: the context shows that not physical but intellectual weakness is meant; so in Acad. 2, 9 _infirmissimo tempore aetatis_; Fin. 5, 43 _aetas infirma_. -- FEROCITAS: 'exultation', 'high spirit'. -- IAM CONSTANTIS AETATIS: _i.e._ middle age, the characteristic of which is _stability_; cf. 76 _constans aetas quae media dicitur_; also 60; Tac. A. 6, 46 _composita aetas_. For _iam_ cf. Suet. Galb. 4 _aetate nondum constanti_; pro Caelio 41 _aetas iam corroborata_; Fam. 10, 3, 2 _aetas iam confirmata_. -- MATURITAS: 'ripeness', _i.e._ of intellect or judgment. -- SUO: G. 295, Rem. 1; H. 449, 2.