She looked superbly full of vigor and the joy of life as she came to say farewell.
"John, darling," she purred, "you will do everything you are told to by the doctors while I am away, won't you ?" and she caressed his forehead with her soft hand.

"So that I may not have to worry as dreadfully as I have been doing, when I come back.

It has made me quite ill--that is why I must go to Carlsbad.

You will be good now; so that I may find you as strong and handsome as ever on my return." Then she bent and kissed him.
He promised faithfully, and she never saw the whimsical gleam in his eyes, because for the moment having gained her end her faculties had resumed their normal condition, which was not one of superlative sensitiveness.

Like everything else in her utilitarian equipment, fine perceptions were only assumed when the magnitude of the goal in view demanded their presence.