Seven surprising statements
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1. Knowledge consists of true concepts
                     and true propositions.
    o A concept is true if it has referents in reality;
      otherwise it is false.
    o Possible worlds are not possible unless they involve
      men making choices.
      See Leonard Peikoff "The Analytic-Synthetic Dichotomy"

2. All knowledge is personal.
    o Concepts are primarily a thinking tool.
    o The context of a proposition is the speaker's knowledge.
    o The speaker chooses his context for a specific purpose.

3. Interpersonal communication permits common knowledge
   among a group of persons.

4. A personal context is a concept-hierarchy denoted by a view name.
    o A hierarchy provides unit economy, a logN dependence
      upon the number of concepts and propositions.

5. The top and bottom concepts in the hierarchy are axiomatic.
    o The choice of context is the selection of nonaxiomatic
      concepts between the top and the bottom.

6. A proposition is a concept.
    o A proposition is a sequence of concepts
      that denotes a relationship between the concepts.

7. A natural language concept has the same properties as
   a simple algebraic concept. e.g.: "dog" vs "x"
	dog do bark
	x**2 = 4