sentences:  After a period of relative decline, his reputation has steadily improved since the 1960s with the publication of numerous academic studies of his work.Today, his ideas and concerns are widely recognised as having anticipated interest in environmentalism, sustainability and craft.Ruskin first came to widespread attention with the first volume of "Modern Painters" (1843), an extended essay in defence of the work of J. M. W. Turner in which he argued that the principal role of the artist is "truth to nature".