In his earlier operas (up to and including "Lohengrin") Wagner's style had been based, rather than on the Italian style of opera, on the German style as developed by Carl Maria von Weber, with elements of the grand opera style of Giacomo Meyerbeer. However he came to be dissatisfied with such a format as a means of artistic expression. He expressed this clearly in his essay 'A Communication to My Friends', (1851) in which he condemned the majority of modern artists, in painting and in music, as "feminine ... the world of art close fenced from Life, in which Art plays with herself.' Where however the impressions of Life produce an overwhelming 'poetic force', we find the 'masculine, the generative path of Art'.