family were booksellers and publishers in the " title="Netherlands">Netherlands
in the " title="17th century">seventeenth century
. As publishers of new work by Descartes, " title="Galileo Galilei">Galileo
, and " title="Hugo Grotius">Grotius
, they were part of the reason for " title="Bertrand Russell">Bertrand Russell
's comment that it "is impossible to exaggerate the importance of Holland in the seventeenth century, as the one country where there was freedom of speculation."