"No doubt you do much practice--or is that now necessary?"
Miss Case considered this thoughtfully.
"I never practice when I am tired, for then it does more harm than good.
It is much better for the voice to rest and not use it at all, than to
sing when not physically fit. One must be in good condition to make
good tones; they will not be clear and perfect if one is not strong and
in good health. I can really study, yet not sing at all. For the whole
work is mental anyway.