Whatever good fortune he may have in the world, it is to be remembered that he has always left one important fortress Untaken behind him.
"Character"
Samuel Smiles
"And suppose," he asked at length, "that the city were starving and still Untaken, so that its inhabitants must either fall into the hands of the enemy or burn the place over their heads, what would you do then?"
"Lysbeth A Tale Of The Dutch"
H. Rider Haggard
Lastly, it is a deplorable waste of time to leave fortresses Untaken in our rear.
"The Intellectual Life"
=Philip Gilbert Hamerton