"If you give me six lines written by the hand of the most honest of men, I will find something in them which will hang him." I understand doubting the sincerit

"If you give me six lines written by the hand of the most honest of men, I will find something in them which will hang him." I understand doubting the sincerity of the authors, but this argument hinges here on them saying "any" instead of "all" and they are often used interchangeably in casual conversation.