Light-limbed though I be, have I not forced the impregnable Castle itself? And my enemies--are they not to-day writhing in distress ? The head of Blueskin, that pitiful thief, quivers in the noose; and Jonathan Wild bleeds at the throat from the dregs of a coward's courage. What a triumph shall be mine when the Keeper finds the stronghold tenantless!'英文原著 · 《A Book of Scoundrels》
Now, a semi-detached villa is an impregnable stronghold. Respectability oozes from the dusky mortar of its bricks, and escapes in clouds of smoke from its soot-grimed chimneys. No policeman ever detects a desperate ruffian in a demure black-coated gentleman who day after day turns an iron gate upon its rusty hinge. And thus, wrapt in a cloak of suburban piety, Peace waged a pitiless and effective war upon his neighbours.英文原著 · 《A Book of Scoundrels》
Poor boy, please God that he gets well. Has he been good? Did he call for any particular young lady? Never fear, Betty, I'll keep the secret. He'll never know you were here unless you tell him yourself."
Meanwhile the days had been busy ones for Col. In anticipation of an attack from the Indians, the settlers had been fortifying their refuge and making the block-house as nearly impregnable as possible. Everything that was movable and was of value they put inside the stockade fence, out of reach of the destructive redskins. All the horses and cattle were driven into the inclosure.英文原著 · 《Betty Zane》
The town had but one gate, opening to the west and defended by towers and bulwarks. The only ascent to this cragged fortress was by roads cut in the rock, so rugged in many places as to resemble broken stairs. In a word, the impregnable security of Zahara had become so proverbial throughout Spain that a woman of forbidding and inaccessible virtue was called a Zaharena. But the strongest fortress and sternest virtue have weak points, and require unremitting vigilance to guard them: let warrior and dame take warning from the fate of Zahara.英文原著 · 《Chronicle of the Conquest of Granada》
Not unfrequently it is the lot of the philosophers to contend against the doctrines of the vulgar, but when it happens, as in the case of Ptolemy's researches, that the doctrines of the vulgar are corroborated by philosophical investigation which bear the stamp of the highest authority, it is not to be wondered at that such doctrines should be deemed well-nigh impregnable. In this way we may, perhaps, account for the remarkable fact that the theories of Ptolemy held unchallenged sway over the human intellect for the vast period already mentioned.英文原著 · 《Great Astronomers》
April 20th or so, Orders are come to Berlin (orders, to Podewils's horror at such a thought), Whitherward, should Berlin be assaulted, the Official Boards, the Preciosities and household gods are to betake themselves:--to Magdeburg, all these, which is an impregnable place; to Stettin, the Two Queens and Royal Family, if they like it better. Podewils in horror, "hair standing on end," writes thereupon to Eichel, That he hopes the management, "in a certain contingency," will be given to Minister Boden; he Podewils, with his hair in that posture, being quite unequal to it. Friedrich answers:--英文原著 · 《History of Friedrich II of Prussia V 15》