Walter Raymond Spalding,
Music: An Art and a Language
“ The day has passed when a composer could dash off symphonies by the dozen; quality and genuine personality in each work are the modern requirements. Thus from Brahms we have four symphonies, from Tchaikowsky six, from Bruckner nine—a dangerously large number!—from Sibelius five, from Elgar two, from d'Indy three; and, even if a composer write but a single really inspired and noble symphony—as for example, César Franck—he is in so far immortal. For the symphonic form is the product of too much intense striving (think of Beethoven's agonies of conception!) ”
