A quote from that book is used in the wikipedia logo.
See also: Bellum omnia omnes, Social contract theories
External links
... the average family size is 3.49. In the village the population is spread out with 24.7% under the age of 18, 6.9% from 18 to 24, 36.3% from 25 to 44, 25.1% from 45 to 64, ...