D’Artagnan was over him at a bound, and said to the Englishman, pointing his sword to his throat, “I could kill you, my Lord, you are completely in my hands; but I spare your life for the sake of your sister.”
— from The Three Musketeers by Alexandre Dumas

" "Father," replied Telemachus, "you will come to know me by and by, and when you do you will find that I can keep your counsel.
— from The Odyssey Rendered into English prose for the use of those who cannot read the original by Homer

There's not the slightest doubt that I could kill you both and get away quite easily if I wanted to—do you understand?
— from The Invisible Man: A Grotesque Romance by H. G. (Herbert George) Wells

At these words, his peals of laughter began again, and as he could see that I was annoyed, he said, “I am amused at the idea that I can keep you here as long as I like.
— from The Memoirs of Jacques Casanova de Seingalt, 1725-1798. Complete by Giacomo Casanova

That I can keep your counsel, and not mine own.
— from The Complete Works of William Shakespeare by William Shakespeare

‘Put your lips to this here tumbler, and then I can kiss you by deputy.’
— from The Pickwick Papers by Charles Dickens

That Indian chief killed your best friend.
— from The Trail of the Sword, Volume 3 by Gilbert Parker

That I can keepe your counsell, and not mine owne.
— from The Tragedie of Hamlet, Prince of Denmark A Study with the Text of the Folio of 1623 by William Shakespeare

“Gentlemen,” said I, “if you will come with me to my tent, I think I can keep you from starving, and have no doubt you will fare there as well, if not better, than in a Canteen.
— from Soyer's Culinary Campaign: Being Historical Reminiscences of the Late War. With The Plain Art of Cookery for Military and Civil Institutions by Alexis Soyer

I hate 'em both so that I could kill ye—I could tear yer throat open with these!"
— from From the Valley of the Missing by Grace Miller White

One thing is certain, Kizzy; you must have peace in your own heart, to give you the least chance."
— from The Carpenter's Daughter by Susan Warner

I will follow with Jeanne a hundred yards behind, so that I can keep you in sight, and will come up if anyone should accost you.
— from In the Reign of Terror: The Adventures of a Westminster Boy by G. A. (George Alfred) Henty

Put your face down close, so that I can kiss you just once, and then you shall draw up a chair and we will talk sensibly.
— from To Love by Margaret Peterson

do you not know that I could kill you where you stand as easily as I could wring the neck of any one of those gold-winged orioles that flew above your head to-day, and who have more right to live than you, for they do at least labor in their own fashion for their food, and their drink, and their dwelling?
— from Under Two Flags by Ouida