An ideal cannot wait for its realization to prove its validity.
Endurance is often the best indicator of validity & value
It is the duty of every citizen according to his best capacities to give validity to his convictions in political affairs.
For, once man is declared 'the measure of all things,' there is no longer a true, or a good, or a just, but only opinions of equal validity whose clash can be settled only by political or military force; and each force in turn enthrones in its hour of triumph a true, a good, and a just which will endure just as long as itself.
The true measure of our belief in the validity of our values is our willingness to act upon them.
If the concept of God has any validity or any use, it can only be to make us larger, freer, and more loving. If God cannot do this, then it is time we got rid of Him.
What has validity is your living, not what happens tomorrow.
The validity of a tax depends upon its nature, and not upon its name.
When circumstances defy order, order should bend or break: anomalies and uncertainties give validity to architecture.
Great parts of our economy are directly dependent upon women having a weak self-concept. A multi-billion dollar fashion-cosmetic industry testifies to the validity of this approach. A woman who does not know who she is can be sold anything.
No one questions the validity, the urgency, the essentiality of the Voting Rights Act.
That of War and Peace or of Almagestes. All are satisfactory. The only criterion of a work is its validity: that it should grip and that it should last.
. . . logical validity is not a guarantee of truth.
Authenticity is about where it comes from; validity is about whether it works.
The only relevant test of the validity of a hypothesis is comparison of prediction with experience.
Winning or losing an argument, receiving an acceptance or rejection, is no proof of the validity or value of personal identity. One may be wrong, mistaken, or a poor craftsman, or just ignorant - but this is no indication of the true worth of one's total human identity: past, present and future!
If everything must have a cause, then God must have a cause. If there can be anything without a cause, it may just as well be the world as God, so that there cannot be any validity in that argument. . . The idea that things must have a beginning is really due to the poverty of our imagination.
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.
I kept wanting to push my image as validity; I wanted to see my portrait on a wall and know it was okay.
This truth must be recognized as a dogma and assume the validity of an axiom in the general understanding of painting
