necessity


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Related to necessity: certainty

necessity

1. Philosophy
a. a condition, principle, or conclusion that cannot be otherwise
b. the constraining force of physical determinants on all aspects of life
2. Logic
a. the property of being necessary
b. a statement asserting that some property is essential or statement is necessarily true
c. the operator that indicates that the expression it modifies is true in all possible worlds.
References in classic literature ?
And to define the matter roughly, we may say that the proper magnitude is comprised within such limits, that the sequence of events, according to the law of probability or necessity, will admit of a change from bad fortune to good, or from good fortune to bad.
If, observing himself, man sees that his will is always directed by one and the same law (whether he observes the necessity of taking food, using his brain, or anything else) he cannot recognize this never-varying direction of his will otherwise than as a limitation of it.
They say this, not at all suspecting that thousands of years ago that same law of necessity which with such ardor they are now trying to prove by physiology and comparative zoology was not merely acknowledged by all the religions and all the thinkers, but has never been denied.
If men descended from the apes at an unknown period of time, that is as comprehensible as that they were made from a handful of earth at a certain period of time (in the first case the unknown quantity is the time, in the second case it is the origin); and the question of how man's consciousness of freedom is to be reconciled with the law of necessity to which he is subject cannot be solved by comparative physiology and zoology, for in a frog, a rabbit, or an ape, we can observe only the muscular nervous activity, but in man we observe consciousness as well as the muscular and nervous activity.
No sort of necessity," she thought, "for a man to come and say good-bye to the woman he loves, for whom he was ready to ruin himself, and has ruined himself, and who cannot live without him.
That those terms which fall under the heads of 'positives' and 'privatives' are not opposed each to each as contraries, either, is plain from the following facts: Of a pair of contraries such that they have no intermediate, one or the other must needs be present in the subject in which they naturally subsist, or of which they are predicated; for it is those, as we proved,' in the case of which this necessity obtains, that have no intermediate.
Will was miserable in the necessity for playing the part of a friend who was making his first appearance and greeting to Rosamond, while his thoughts were busy about her feeling since that scene of yesterday, which seemed still inexorably to enclose them both, like the painful vision of a double madness.
Suppose the necessity of our situation demanded peace, and the interest or ambition of our ally led him to seek the prosecution of the war, with views that might justify us in making separate terms.
The possibility of a question of this nature proves the necessity of laying the foundations of our national government deeper than in the mere sanction of delegated authority.
In that event the Law, dealing with it as a matter of necessity, divides it into two equal portions.
Today I reach back to Aristotle for his distinction between the realm of necessity and the realm of freedom.
A district court in Washington, DC, has held that alleging a laboratory's failure to independently verify the medical necessity of tests ordered by treating physicians is sufficient to survive a Rule 12(b) challenge to a federal False Claims Act claim.