See the instructive passage in Aristotle, Nic. Eth.
Yet instructive parallels may be found in ancient literatures.
The study of the clan-group as an organization is as instructive here as in other fields.
In 1827 and the two following years, Cunningham prosecuted instructive explorations on both sides of the Liverpool range, between the upper waters of the Hunter and those of the Peel and other tributaries of the Brisbane north of New South Wales.
- The records of the telephone industry in Great Britain during the thirty years from 1877 to 1907 form an instructive chapter in the industrial history of the country.