The Rite of Spring the winter of 1909–10, in close association with Fokine who was choreographing "The Firebird". During this period Stravinsky made the acquaintance of Nijinsky who, although not dancing in the ballet, was a keen observer of its development. Stravinsky was uncomplimentary when recording his first impressions of the dancer, observing that he seemed immature and gauche for his age (he was 21). On the other hand, Stravinsky found Diaghilev an inspiration, "the very essence of a great personality". "The Firebird" was premiered on 25 June 1910, with Tamara Karsavina in the main role, and was a great public success. This ensured
Picasso and the Ballets Russes said, ""Parade" is my best bottle of wine. I do not like to open it too often." Picasso's sets and costumes for the Ballets Russes are now considered symbols of "the progressive art of their time, and [they] have only become more celebrated and better appreciated over the past century." Nevertheless, according to his biographer, John Richardson, "Picasso's Cubist followers were horrified that their hero should desert them for the chic, elitist Ballets Russes." It was the onset of World War I that prompted him to leave Paris and live in Rome, where the Ballets Russes rehearsed. He also was