1. est infantia dicta a non fando, finitur anno septimo.
2. Pueritia, quasi ætas pura, absolvitur anno decimo quarto.
3. Adulescentia, ad gignendum adulta, porrigitur usque ad annum vigesimum octavum.
4. Juventus, omnium ætatum firmissima et juvando se ac alios idonea, clauditur anno quinquagesimo.
5. Gravitas, sive ætas senioris, media inter juventutem et senectutem, quam Græci πρεσβύτερω vocant, anno septuagesimo terminatur.
6. Senectus terminum mortem habet, incerto annorum numero.
Confessionum, Augustini, cum notis P. H. Wagnereck, SJ, Ratisbonæ: Pustet, 1926, 20-21 n2.
The six stages of age according to Isidore are
1. Infancy which comes from not uttering (not speaking), is finished on the seventh year.
2. Childhood, which is the age of purity, is over on the fourteenth year.
3. Adolescence, for producing adulthood, continues until the twenty-eighth year.
4. Youth, the strongest of all the ages, ideal for helping itself and the others, closes with the fiftieth year. [This is the age which is the most helpful for itself and for the others! Interesting. It is the proper age of helpfulness: strength and service!!! (28-49)]
5. Heaviness, or the senior age, is in between youth and old age, which the Greeks call presbyter (elder), terminates with the seventieth year.
6. Old age has its end in death, an uncertain number of years.