dīligō

1. Diligere (from ἀλέγειν) is love arising from esteem, and, as such, a result of reflection on the worth of the beloved object, like φιλεῖν; whereas amare is love arising from inclination, which has its ground in feeling, and is involuntary, or quite irresistible, like ἐρᾶν, ἔρασθαι; diligere denotes a purer love, which, free from sensuality and selfishness, is also more calm; amare, a warmer love, which, whether sensual or platonic, is allied to passion. Cic. Att. xiv. 17. Tantum accessit ut mihi nunc denique amare videar, ante dilexisse. Fam. xiii. 47. Brut. i. 1. Plin. Ep. iii. 9. 2. Amare means to love in general; deamare, as an intensive, to love desperately, like amore deperire; and adamare, as an inchoative, to fall in love. 3. Caritas, in an objective sense, means to be dear to some one; amor, to hold some one dear: hence the phrases, Caritas apud aliquem; amor erga aliquem. 4. Caritas, in a subjective sense, denotes any tender affection, especially that of parents towards their children, without any mixture of sensuality, and refers merely to persons, like ἀγάπη or στοργή; whereas amor denotes ardent passionate love to persons or things, like ἔρως; lastly, pietas (from ψήχω, ψίης, the instinctive love to persons and things, which we are bound to love by the holy ties of nature, the gods, those related to us by blood, one’s native country, and benefactors. Caritas rejoices in the beloved object and its possession, and shows itself in friendship and voluntary sacrifices; amor wishes evermore to get the beloved object in its power, and loves with a restless unsatisfied feeling; pietas follows a natural impulse and religious feeling. (iv. 97.)

1. Opera (from περᾶν, πράσσειν,) denotes activity without intense exertion, as merely doing, or turning one’s hand to, something, in opp. to momentary inactivity; and also in opp. to thinking, speaking, advising, like ἐργασία; whereas labor denotes strenuous exertion, which is followed by fatigue, labor, in opp. to pleasure, like πόνος. Plaut. Aul. iii. 3. 7. Opera huc est conducta vestra, non oratio: comp. with Bacch. iii. 6, 11. Cic. Rep. i. 9. Otiosiorem opera quam animo. Liv. xxii. 22. Ut opera quoque impensa consilium adjuvem meum. And Liv. v. 4. Labor voluptasque dissimillima natura, societate quadam naturali inter se sunt conjuncta: comp. with Cic. Mur. 35. Plin. Ep. ix. 10. Senec. Tranq. 2. 2. Industria, gnavitas, and sedulitas, denote activity as an habitual quality, in opp. to the love of idleness; industria, of an elevated sort, the impulse to activity that animates the hero or the statesman, in opp. to ignavia, gnavitas (γενναιότης) of a useful sort, the diligence of ordinary men, and of the industrious citizen; sedulitas (sine dolore) an activity that shows itself in small matters, often even of a comic sort, the indefatigable bustling of the busy housewife, of the good-natured nurse, of any one who pays officious court to another. Colum. xii. præf. 8. Ut cum forensibus negotiis matronalis sedulitas industriæ rationem parem faceret. 3. Assiduitas and diligentia denote industry; assiduitas (from sedere) like συνέχεια, more in an extensive sense with continued and uninterrupted efforts; diligentia, (ἀλέγειν) more in an intensive sense, with careful and close application, in order to attain the end of one’s industry. 4. Studium denotes inclination and love towards the object of one’s industry, and an inward impulse. (i. 111.)