And were this to be so, and the being I loved best of all in the world came and asked me which he should choose-which refuge I held to be most unattackable, sweetest, profoundest-I would surely advise him to shelter his destiny in the refuge of the soul that grows nobler.
"Wisdom and Destiny"
Maurice Maeterlinck
And this document is perfectly en regle, and unattackable.
"Baron Trigault's Vengeance Volume 2 (of 2)"
Emile Gaboriau
"A woman without vanity would be unattackable," resumed the Man of Wrath.
"Elizabeth and her German Garden"
"Elizabeth", AKA Marie Annette Beauchamp