sentences:  Sachs stayed at Zhagory six months, when he was invited to teach at Raseiniai, where he remained till the end of 1843.At length he went to Berlin (1844), where he entered the university, attending particularly the lectures of Schelling and Althaus.In 1856 Sachs was invited to Paris by Baron Joseph Günzburg to become his private librarian and the tutor of his children.