At this time he was introduced to Victor Cousin, and made the acquaintance of Jules Michelet. He had visited Germany and the United Kingdom before the appearance of his book. Cousin obtained for him a position on a government mission in Greece, the "Scientific Expedition of Morea", in 1829 (at the end of the Greek War of Independence against the Ottoman Empire), and on his return he published in 1830 a book on "La Grèce moderne" ("Modern Greece"). With Michelet he published a volume of works in 1843, denouncing Jesuits and blaming them for religious, political and social troubles. He also became acquainted with and a lover of the works of Ralph Waldo Emerson in 1838. Quinet wrote several lectures praising Emerson's works which were published with the title of "Le Christianisme et la Revolution Francaise" in 1845.