But she broke off to say: “Keep your eye on the rats.
— from Adventures of Huckleberry Finn by Mark Twain

“They were there this evening, but now I don’t know, your excellency.
— from War and Peace by Tolstoy, Leo, graf

‘Keep your eyes open,’ said Wardle, not heeding the question in the excitement of the moment.
— from The Pickwick Papers by Charles Dickens

I will now defy the saucy, busy censurers of the world; and bid them know your excellence, and my happiness, before they, with unhallowed lips, presume to judge of my actions, and your merit!—And let me tell you, my Pamela, that I can add my hopes of a still more pleasing amusement, and what your bashful modesty would not permit you to hint; and which I will no otherwise touch upon, lest it should seem, to your nicety, to detract from the present purity of my good intentions, than to say, I hope to have superadded to all these, such an employment, as will give me a view of perpetuating my happy prospects, and my family at the same time; of which I am almost the only male.
— from Pamela, or Virtue Rewarded by Samuel Richardson

If they kill you, English justice will be under an obligation to me for having saved it trouble.
— from The Three Musketeers by Alexandre Dumas

I also have seen a charter under seal to the effect following:—“Henry king of England, to Ralfe B. of Chichester, and all the ministers of Sussex, sendeth greeting, know ye, etc.
— from The Survey of London by John Stow

Keep your eye on it.”
— from Great Expectations by Charles Dickens

I know you expect me to look after you and keep you proper, but I’m not going to do it.
— from Anne of the Island by L. M. (Lucy Maud) Montgomery

if you—if any governess had but half a mother’s watchfulness—half a mother’s anxious care, I should be saved this trouble; and you would see at once the necessity of keeping your eye upon her, and making your company agreeable to— Well, go—go; there’s no time to be lost,’ cried she, seeing that I had put away my drawing materials, and was waiting in the doorway for the conclusion of her address.
— from Agnes Grey by Anne Brontë

If he comes here, better keep your eyes open."
— from Ruth Fielding in the Great Northwest; Or, The Indian Girl Star of the Movies by Alice B. Emerson

“You keep your eyes shut, now, else you sha’n’t have any.”
— from Journeys Through Bookland, Vol. 7 by Charles Herbert Sylvester

49] don’t check her at all with the rudder, slack a foot or two of the lee braces and check in to wind’ard; keep your eye constant on that sail, Mr. Clark’—that were the second mate—‘and don’t let it shake; keep it good full and give her away; lay the crochick yard square, and come up to the main-braces, all of you.’
— from Stories by American Authors, Volume 9 by Various

"Why, I--I didn't know you ever did say it.
— from The Cavalier by George Washington Cable

Keep your eyes open and spread the news that Condé is hiding in the neighbourhood.
— from My Sword's My Fortune: A Story of Old France by Herbert Hayens

But this is an exception: the rule is, that you may read wherever you run, if you will keep your eyes and ears open, and learn by experience where chiefly to be on the look-out.
— from A Year with the Birds Third Edition, Enlarged by W. Warde (William Warde) Fowler

You think you are being democratic: I have known you even think you were socialistic.
— from Robin Linnet by E. F. (Edward Frederic) Benson

You're so tired that you can hardly keep your eyes open to look at me.
— from The Yeoman Adventurer by George W. Gough

When we find it, keep your eyes open.
— from Dave Dawson on Convoy Patrol by Robert Sidney Bowen

Do not look towards Bagdad, neither do you look towards the Army, but kill your enemy right and left.
— from Gandhi and Anarchy by Sankaran Nair, C. (Chettur), Sir