We cannot, should not, dance everything. Ballet must remain closely linked to dance itself: ballet cannot be the illustration of any other art. Ballet should not borrow its rhythmic shape from music. Ballet can freely exist without musical accompaniment. When a ballet is closely linked to its score, the rhythmic base must be dictated by the choreographer and not the composer. The choreographer must not be the slave of the painter/designer. A free and independent choreographic theatre must be created.
In 1935 Serge Lifar published Le manifesto du chorégraphe his confessio fidei (“confession of faith”), proposing laws about the independence of choreography.