Degas was obsessed by the art of classical ballet, because to him it said something about the human condition. He was not a balletomane looking for an alternative world to escape into. Dance offered him a display in which he could find, after much searching, certain human secrets .
Only the bad artists of the nineteenth century were frightened by the invention of photography; the good ones all welcomed it and used it. Degas liked it not only because it provided an accurate record, but because the snapshot showed him a means of escape from the classical rules of design. Through it he learnt to make a composition without the use of formal symmetry.kenneth clark