With the quick insight into character, without which no medical man can rise to the eminence of Dr. Donaldson, he saw that she would exact the full truth; that she would know if one iota was withheld; and that the withholding would be torture more acute than the knowledge of it. 
Dr. Donaldson saw that she would know if one iota of the truth was withheld; and that the withholding would be worse torture than the knowledge.
