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As every bookie knows instinctively, a number such as reliability - a qualitative rather than a quantitative measure - is needed to make the valuation of information practically useful.
--
Chapter 24, Bits, Bucks, Hits and Nuts, Information theory beyond Shannon, p. 221

 

Hans Christian von Baeyer

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For although it is certainly true that quantitative measurements are of great importance, it is a grave error to suppose that the whole of experimental physics can be brought under this heading. We can start measuring only when we know what to measure: qualitative observation has to precede quantitative measurement, and by making experimental arrangements for quantitative measurements we may even eliminate the possibility of new phenomena appearing.

 

Hendrik Casimir

 

All relations are either qualitative or quantitative. Qualitative relations can be considered by themselves without regard to quantity. The algebra of such enquiries may be called logical algebra, of which a fine example is given by Boole.
Quantitative relations may also be considered by themselves without regard to quality. They belong to arithmetic, and the corresponding algebra is the common or arithmetical algebra.
In all other algebras both relations must be combined, and the algebra must conform to the character of the relations.

 

Benjamin Peirce

 

It has become entirely clear that we must have government supervision of the capitalization, not only of public-service corporations, including, particularly, railways, but of all corporations doing an interstate business. I do not wish to see the nation forced into the ownership of the railways if it can possibly be avoided, and the only alternative is thoroughgoing and effective legislation, which shall be based on a full knowledge of all the facts, including a physical valuation of property. This physical valuation is not needed, or, at least, is very rarely needed, for fixing rates; but it is needed as the basis of honest capitalization.

 

Theodore Roosevelt

 

...[O]ver the last fifteen years or so I've interviewed a number of people about these dimensional doorways and have culled from these interviews with people what I take to be the most reliable information. Now there is no one single standard of reliability when you get to a [...] matter like this. It's not like: 'well, uh, you run test A-B-C and if it tests out, then you know that the interviewee is telling you accurate information about this subject.' It's much more subtle than that and it takes in a great number of calculations, I guess you could say, but it's more than just that. To qualify an interviewee on this matter requires a lot of inference, requires a lot of questioning along other lines to sort of test out the person's sanity, so to speak, to begin with, and you get a lot of people that you just don't believe.

 

Jon Rappoport

 

...they have brainwashed us into believing in the last 150 years... that quantitative change is superior to qualitative attributes. If we can turn out more... it doesn't matter if they're half as good. ...We're quantifying everything, and that is why we're trying to put everything on computers. Governments will no longer have to make decisions; computers will do it.

 

Carroll Quigley