Charles Sanders Peirce - A Collection of Threes

Threes contain monads and dyads
Triads for thoughtBeat BinaryTriangles being infinitely expandable 
The first is the vague and undefinable realityThe second somehow modifies and adds to the firstThe third brings the first and second to a point of action actuality manifestation hypothesis experiment Peirce's is a progressive evolutionary realistic philosophy
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Possible triangles, as 
1 Quality

2 Relation              3  Representation
+
Icons

Indices      Symbols
+
Terms

Propositions       Arguments
+
Hypothesis (Abduction)

Induction                     Deduction 
+
Sign

Object         Interpretant
+
Speculative Grammar

Critic              Methodeutic
+
Phenomenology

Normative Science       Metaphysics
+
Aesthetics

Ethics               Logic
+
Feeling-qualities

Sense of reaction         Sense of generalization
+
Mind

Matter             Evolution
+
Chance 

Law              Habit-taking
+
Firstness

Secondness          Thirdness
+
Idea

Brute Actuality   The sign's soul
(Possible triangles drawn from Brent, Charles Sanders Peirce, (1993) 331-332
ADDENDUM
Here is a list of the triads in seqoential lines

1 Quality 2 Relation 3  RepresentationIcons  Indices SymbolsTerms Propositions ArgumentsHypothesis (Abduction)  Induction  Deduction Sign  Object  InterpretantSpeculative Grammar Critic  MethodeuticPhenomenology  Normative Science  MetaphysicsAesthetics  Ethics LogicFeeling-qualities  Sense of reaction  Sense of generalizationMind  Matter EvolutionChance  Law Habit-takingFirstness  Secondness ThirdnessIdea  Brute Actuality The sign's soul
And as firsts, seconds and thirds.
FIRSTS
Quality, Icons, Terms, Hypothesis (Abduction). Sign, Speculative grammar, Phenomenology, Aesthetics, Feeling-qualities, Mind, Chance, Firstness, Idea
SECONDS
Relation, Indices, Propositions, Induction, Object, Critic, Normative Science, Ethics, Sense of reaction, Matter, Law, Secondness, Actuality THIRDS
Representation, Symbols, Arguments, Deduction, Interpretant, Methodeutic, Metaphysics, Logic, Sense of generalization, Evolution, Habit-taking, Thirdness, The sign's soul
NOTE
In some respects this last is the most useful as it easily enables one to select firsts, seconds and thirds in any order - for example Sign, Proposition, Generalization or Aesthetics, Actuality, Habit-taking. Each cluster suggests firstness, secondness and thirdness.