== Subjectivity == 

 I have deleted the assertion that qualitative is equal to subjective and quantitative is equal to objective. I can see where this is coming from, because quantities can usually be measured uncontroversially with some kind of instrument, and qualities are often subject to debate (often about the meaning of the quality) and to the effects of perception; but this is only a rough correspondence, and there are all kinds of qualities which things can have which are not quantifiable and are still uncontroversial (and objectively real), and likewise there are all kinds of quantities which are difficult to measure and controversial. For instance, "is this lab rat alive or dead" a qualitative question, and "how fickle are women" is a quantitative (yet stupid) question.