Noun
The quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or proof; the validity of an objection.
Legal strength, force, or authority; that quality of a thing which renders it supportable in law, or equity; as, the validity of a will; the validity of a contract, claim, or title.
Value.
Source: Webster's dictionary... logical validity is not a guarantee of truth. David Foster Wallace
I would like to be judged on the validity of my arguments, not as a victim. Ayaan Hirsi Ali
Reaching and understanding is the process of bringing about an agreement on the presupposed basis of validity claims that are mutually recognized. Jürgen Habermas
Once one is caught up into the material world not one person in ten thousand finds the time to form literary taste, to examine the validity of philosophic concepts for himself, or to form what, for lack of a better phrase, I might call the wise and tragic sense of life. F. Scott Fitzgerald
To some men popularity is always suspicious. Enjoying none themselves, they are prone to suspect the validity of those attainments which command it. George Henry Lewes
I shall develop the thesis that anyone acting communicatively must, in performing any speech act, raise universal validity claims and suppose that they can be vindicated. Jürgen Habermas