"Europeanism" by McCormick (2010). "European values" were contrasted to non-European values in international relations, especially in the East–West dichotomy, "European values" encompassing individualism and the idea of human rights in contrast to Eastern tendencies of collectivism. However, "European values" were also viewed critically, their "darker" side not necessarily leading to more peaceful outcomes in international relations. The association of "European values" with European integration as pursued by the European Union came to the fore with the eastern enlargement of the EU in the aftermath of the Cold War. The Treaty of Lisbon (2007) in article 2 lists a number of "values of the Union", including "respect for freedom, democracy, equality, the rule of law and respect for human rights including the rights of persons belonging to minorities", invoking "a society in which pluralism, non-discrimination, tolerance, justice, solidarity and equality between women and men prevail". Cultural and linguistic identity Defining a European identity is a very complex process. From outside, "Europeanness" would be a thing for a Chinese or an American, but on the internal plan geography is not sufficient to define Europe in the eyes of Europeans. According to Jean-Baptiste Duroselle, "there has been, since men think, an immense variety of Europes". Paul Valéry cites three major heritages to define the European identity : the Greek democracy, the Roman Law, and the Judeo-Christian tradition. Yet Emmanuel Berl criticizes this thesis as reductive, since it supposes a level of "Europeanness", decreasing for West to East. According to him, Europe is shape-shifting, and no culture historically prevails over another, and European Islam, which concerns around 8% of the population, is one of the many sides of European identity. Five languages have more than 50 million native speakers in Europe: Russian, German, French, Italian and English. While Russian has the largest number of native speakers (more than 100 million in Europe), English has the largest number of speakers in total, including some 200 million speakers of English as a second language. There is no final account of all European languages, but the sole EU recognizes 24 official languages. For some, the linguistic diversity is constituent of European identity. Formation The European institutions made several concrete attempts to reinforce two things: identity contents (what is Europe in people's minds?) and identity formation (what makes people feel European?). The .eu domain name extension was introduced in 2005 as a new symbol of the European Union