Pierre Teilhard de Chardin

When all is said and done, what constitutes the impregnable superiority of Christianity over all other types of Faith is that it is ever more consciously identified with a Christogenesis: in other words, with an awareness of the rise of a certain universal Presence which is at once immortalizing and unifying.

French Philosopher

Maria Montessori

Temptation, if it is not to conquer, must not fall like a bomb against another bomb of instantaneous moral explosions, but against the strong walls of an impregnable fortress strongly built up, stone by stone, beginning at that distant day when the foundations were first laid.

Italian Educator

Winifred Holtby

These are they whose youth was violently severed by war and death; a word on the telephone, a scribbled line on paper, and their future ceased. They have built up their lives again, but their safety is not absolute, their fortress not impregnable.

English Novelist

Eliot Ness

You think, eventually, that nothing can disturb you and that your nerves are impregnable. Yet, looking down at that familiar face, I realized that death is something to which we never become calloused.

American Public Servant

Chris de Burgh

You get pigeonholed. It's a kind of safety device for people who don't really want to look any further outside of the box, but I'm actually impregnable as far as what people say about me.

Irish Musician

Peter Landesman

A museum's meticulous presentation - exhaustive captions, hushed lighting, state-of-the-art armature - creates an institutional authority that is constructed to seem impregnable.

American Director

Ron Fournier

Washington, Jefferson, Lincoln and Roosevelt faced adversities that, in their times, seemed impregnable. Great presidents overcome great odds.

American Journalist

Kim Jong-un

The political and military position of socialism should be further cemented so that it can be an impregnable fortress.

North Korean Leader

Oren Etzioni

A.I. should not be weaponized, and any A.I. must have an impregnable 'off switch.

American Businessman

Jeremy Collier

True courage is a result of reasoning. A brave mind is always impregnable.

English Clergyman

Used to describe something that physically can't be defeated or damaged.

Physical Strength

Sometimes used in a non-literal way to emphasize a strong defence or resistance.

Not Literal

Can be an exaggeration to express something is very strong or unlikely to be defeated.

Hyperbolic Use

Refers to systems or data that cannot be hacked or accessed by unauthorized users.

Technical Security

Often associated with sophisticated technology or modern methods that are highly secure.

Advanced Technology

Gives a sense of safety when referring to places designed to protect something valuable.

Confidence in Safety

 So that's the kind of ignorance that I want to talk about today, but of course the first thing we have to clear up is what are we going to do with all those facts? So it is true that science piles up at an alarming rate. We all have this sense that science is this mountain of facts, this accumulation model of science, as many have called it, and it seems impregnable, it seems impossible.

Stuart Firestein: The...

 and you're not supposed to be having sex, and you're definitely not supposed to be having children. It's a social citadel; it's an impregnable fortress which resists any assault, any alternative. And around the fortress is this vast field of taboo

A little-told tale of...

 that allowed them to build much of their sprawling civilization. Pliny the Elder praised an imposing sea wall made from the stuff as “impregnable to the waves and every day stronger.” He was much of this construction still stands,

The material that could...

 resembling a fortress, impregnable by humans. And, in fact, only a few of these mountains have been climbed and explored on their top. These mountains contain also a scientific They are made by quartz,

Deep Under the Earth's...

 The Germans were embedded in this mountain hillside, rocky hillside, in impregnable caves, and three allied battalions had been pounding away at it for six months, and they were stalemated.

Why I love a country...

 And there you have it. You plug 43 into the wall fabricator, and after a tense night, the sun rises on your now impregnable fortress and a herd that won’t become unhappy meals.

Can you solve the...

 extraordinary hunting trails large soldier ants line the trail protecting the smaller workers inside their massive jaws create an impregnable barricade

Killer Ant Swarm...

 drink the hedgehog will stay an impregnable spiny ball like this until it decides that danger has passed

Hedgehogs Mating With...

 the hedgehog will stay an impregnable spiny ball like this until it decides that danger has passed

A Collection Of Spring...

 impregnable spiny ball like this until it decides that danger has passed

Impregnable