Lastly, I confess that I have as vast contemplative ends as I have moderate civil ends; for I have taken all knowledge to be my province; and if I could purge it of two sorts of rovers, whereof the one with frivolous disputations, confutations and verbosities, the other with blind experiments and auricular traditions and impostures, hath committed so many spoils, I hope I should bring in industrious observations, grounded conclusions and profitable inventions and discoveries - the best state of that province.
BARBAROSSA ("Redbeard"), the name given by the Christians to a family of Turkish admirals and sea rovers of the 16th century, - Arouj and Khizr (alias Khair-ed-Din) and Hassan the son of Khair-ed-Din.
Secondly, within the domain of science itself, properly so called, there were two " kind of rovers " who must be dismissed.
After the departure of the Romans the walls became ruinous or were partly pulled down, perhaps by sea rovers from the north.
The necessity of seeking protection from the sea-rovers and pirates who infested these waters during the whole period of Hanseatic supremacy, the legal customs, substantially alike in the towns of North Germany, which governed the groups of traders in the outlying trading posts, the establishment of common factories, or "counters"(Komtors) at these points, with aldermen to administer justice and to secure trading privileges for the community of German merchants - such were some of the unifying influences which preceded the gradual formation of the League.