In Prague, during August, I was taken to a performance given by young Russian dancers graduated from the Moscow and Leningrad Ballet Schools. They were all soloists, and the programme was made up of short divertissements from ballets in nearly every instance quite unfamiliar to me. I am no expert on ballet, though I have watched it often enough, but the veriest ignoramus would have recognised their great technical achievement and the unusual quality of their energy and enthusiasm.