Indeed, you shall _not_; it shall not be in your power; for so long only as you positively say, in every letter to Mary, 'I am well,' and I know you cannot speak or write a falsehood, so long only shall you be considered as well."

Indeed, so long as you positively say, in every letter to Mary, 'I am well,' since I know you cannot speak a falsehood, so long only shall you be considered well."
