Xander understood that some part of Jessi was stuck in hard core denial, the kind that needed irrefutable proof that she had no other alternatives.
Kant described it as "an irrefutable book."
But the abstract doubt " whether after all things may not be quite other in themselves than that which by the laws of our thought they necessarily appear " is a scepticism which, though admittedly irrefutable, is as certainly groundless.
Thomson), by the use of his then newly-invented electrometer, was able to confirm Volta's observations on contact electricity by irrefutable evidence, but the contact theory of the voltaic pile was then placed on a basis consistent with the principle of the conservation of energy.
They bear in themselves irrefutable proofs of their authenticity, bringing us face to face not with the Zoroaster of the legends but with a real person, announcing a new doctrine and way of salvation, no supernatural Being assured of victory, but a mere man, struggling with human conflicts of every sort, in the midst of a society of fellow-believers yet in its earliest infancy.
It is a profound thought and, I believe, an irrefutable one.
The theory seems irrefutable just because the act of transference of the people's will cannot be verified, for it never occurred.
Everyone understands that this illogical reply is an irrefutable demonstration of freedom.
This unshakable, irrefutable consciousness of freedom, uncontrolled by experiment or argument, recognized by all thinkers and felt by everyone without exception, this consciousness without which no conception of man is possible constitutes the other side of the question.