upon one's guard
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
To stand upon one’s guard against Death exasperates her malice and protracts our sufferings.
From Imaginary Conversations and Poems A Selection by Landor, Walter Savage
Topt, to go out sharp, to be upon one’s guard.
If one don't mind what one's about, one is blown up in a moment; and to be always upon one's guard, is worse than ruin itself.
From The Wanderer (Volume 3 of 5) or, Female Difficulties by Burney, Fanny
He had known in abundance women of courage, women of skill in dissimulation, but he remembered that when they were both beautiful and clever it was the part of wisdom to be upon one's guard.
From The Secret Witness by Gibbs, George
One must be so circumspect—so much upon one's guard with all the world.
From Tales and Novels — Volume 05 by Edgeworth, Maria