Walter R. Nursey, The Story of Isaac Brock: Hero…
“ It was this spirit of unrest among the people of Quebec [Pg 58] that moved Sir James Craig to keep Brock within easy reach until the growing discord in Upper Canada called for the presence of a man of tact and resolution, one to whom all things seemed possible—and Brock knew no such word as "impossible." On one occasion the "faithful sergeant-major" had ventured to declare that a certain order was "impossible." "'Impossible!'" repeated Brock, "nothing should be 'impossible' to a soldier. The word 'impossible' must not be found in a soldier's vocabulary." ”
