Carl Schroeder, Handbook of violin playing (1920)
“ The violinist is capable of a perfect rendering only if,—in addition to a firm, easy technique of the left hand, adroitness in bowing and susceptibility to the modifications of tone, and a technique equal to all demands made upon it,—he has under his control a higher spiritual musical development, fine taste, and a warm individual feeling. Only through the combination of all these qualities can one reinvest the dead signs of the composer with spirit and life, and cause his work to pass before the hearer’s soul as an ideal, living picture. ”
