Book excerpt: Friedrich Schiller, the dramatist and poet, greatly influenced the development of aesthetics through his essays. He sums up the eighteenth century while anticipating modern ideas; his notions of the naive and the sentimental, of art as play, and of beauty as semblance, have had a lasting impact on aesthetic speculation. Dr Sharpe's book is the first study devoted to tracing the attempts of successive generations of philosophers and literary critics to expound the works and deal with the problems they present. Surveying Anglo-American as well as German-language criticism, she illuminates the impact of critical and political change on their evaluation.