Allow me to show you something:
   When I ran 9000+ of my little writings through the past 28 yrs
   (I think a book report on Black Holes in 10th grade made it in
   there too, so that's... wait, yeah 28), that awesome little tool
   at [1]http://act-dl.base-search.net/textclassifier (which is
   just one tool of many I'm using in self-analysis to get a
   somewhat objective perspective of self), and I properly
   accounted for quantity as well as certainty, I came up with this
   top four:

   Time 115
   Epistemology, causation & humankind 120
   Causation 122
   Philosophy & Theory 401

   This surprised me because of its accuracy to how I think of
   myself yet didn't expect it to come out like this.

   Now, What is Philosophy & Theory 401?

   Well, I correlated it to the Library of Congress system and got
   these:
   "Psycholinguistics
   Symbolic language
   us: Language, Psychology of
   us: Language and languages--Psychological aspects
   us: Language and languages--Psychology
   us: Psychology of language
   us: Speech--Psychology
   us: Cartesian linguistics
   us: Cognitive grammar
   us: Communicative competence
   us: Competence and performance (Linguistics)
   us: Creativity (Linguistics)
   us: Generative grammar
   us: Innateness hypothesis (Linguistics)
   us: Language acquisition
   us: Language and emotions
   us: Language awareness
   us: Masked priming
   us: Sapir-Whorf hypothesis
   us: Sound symbolism
   us: Speech errors
   us: Speech perception
   us: Xenophobia in language

   as subtopics.

   It's In short, it's a different form of philosophy than you
   might be speaking of.

   You may be in DDC 142: Critical Philosophy.
   or 180-189 - ancient to modern Western Philosophy.

   Or perhaps Philosophy & Theory 501 - which is Science and
   Mathematics.

   In short... we may be working from within two different systems
   which happen to share similar language.

References

   Visible links
   1. http://act-dl.base-search.net/textclassifier