 Another notable political thinker was Wawrzyniec Grzymała Goślicki (1530–1607), best known in Poland and abroad for his book "De optimo senatore" (The Accomplished Senator, 1568).It propounded the view—which for long got the book banned in England, as subversive of monarchy—that a ruler may legitimately govern only with the sufferance of the people.After the first decades of the 17th century, the wars, invasions and internal dissensions that beset the Polish-Lithuanian Commonwealth, brought a decline in philosophy.