And here another contrast arises: that of the opposing opinions of the scientists of the voice. But the singer must dispense with analytical ruminations and apply the opinion that is born from the living experience of singing and from the urgency of problems that sometimes arise unexpectedly on stage, in the full development of stage action and singing.
Sound and word, thought and feeling, imagination and will, mature in the practice of singing. Because the science of singing is experimental science. Practice clarifies the theory, preceding it over time. The effects go back to the causes, from analysis to synthesis, to find the logical connection between sound, word, thought. The sound sensation is based on imitation and example.
– Giacomo Lauri-Volpi – “Mysteries of the human voice”, 1957