Man acts, therefore, man is able to reason teleologically. Teleological reasoning implies a representation of the world, even maximally simplified, to simulate the action in order determine whether it will achieve his end.
This minimal language is called Natural Semantic Metalanguage and consists of this set of semantic primes:
- Relational Substantives: KIND, PART
- Determiners: THIS, THE SAME, OTHER~ELSE~ANOTHER
- Quantifiers: ONE, TWO, SOME, ALL, MUCH/MANY, LITTLE/FEW
- Evaluators: GOOD, BAD
- Descriptors: BIG, SMALL
- Mental predicates: THINK, KNOW, WANT, DON'T WANT, FEEL, SEE, HEAR
- Speech: SAY, WORDS, TRUE
- Actions, Events, Movement: DO, HAPPEN, MOVE
- Existence, Possession: BE (SOMEWHERE), THERE IS, BE (SOMEONE/SOMETHING), (IS) MINE
- Life and Death: LIVE, DIE
- Time: WHEN/TIME, NOW, BEFORE, AFTER, A LONG TIME, A SHORT TIME, FOR SOME TIME, MOMENT
- Space: WHERE/PLACE, HERE, ABOVE, BELOW, FAR, NEAR, SIDE, INSIDE, TOUCH (CONTACT)
- Logical Concepts: NOT, MAYBE, CAN, BECAUSE, IF
- Intensifier, Augmentor: VERY, MORE
- Similarity: LIKE/AS/WAY
In The Universal Categories of Praxeology in Light of Natural Semantic Metalanguage Theory, Paweł Dziedziul shows how these concepts are a precondition to action. Consequently, Critical theory does not apply to praxeology. This language is indeed universal and any science founded on them is sound and accessible to any agent, including man.
Debate as in mainstream social sciences is irrelevant. Discussion between praxeologists consists of deductions to reach common a priori synthetic truths.
Praxeological truths cannot be hidden to any man, whatever propaganda its opponents would impose.