Definition

Temperament is the innate, biologically rooted baseline you are born with; personality is the relatively stable pattern that develops on top of it over years; attitude is the situational stance you can choose right now. Posture is attitude made physical.

Origin

The four-temperaments scheme descends from Hippocrates and Galen. Modern differential psychology separates the layers: Gordon Allport’s trait theory (1937) framed personality as organised, developed dispositions; Hans Eysenck tied core temperament to biological arousal systems; Jerome Kagan’s longitudinal work (Galen’s Prophecy, 1994) showed temperament — e.g. high-reactive infancy — as an early, partly heritable substrate that shapes but does not dictate later personality.

Mechanism

The layers differ in how trainable they are:

Given Temperament · formed Personality · chosen Attitude · embodied Posture. Pair Conditioning · Agentic properties.

  • Temperament — given. The nervous-system baseline (reactivity, sensitivity, basic tempo). You manage it; you do not choose it.
  • Personality — formed. Stable patterns built over time on the temperament substrate through experience and conditioning. Slow to change, but not fixed.
  • Attitude — chosen. The orientation you bring to this situation. The most malleable layer — available in the moment even when temperament is not.
  • Posture — embodied attitude. The stance, breath, and carriage that both express and feed an attitude.

Knowing which layer you are working on prevents two errors: fighting Temperament as if it were Attitude, and treating a chosen Attitude as if it were fixed Personality.

The four layers map onto the Identity pillar from substrate to signal:

LayerIdentity relation
TemperamentConstitutional floor — below narrative identity; manage, do not moralise
PersonalitySlow consolidation — traits and habits feed Narrative identity and Identity coherence
AttitudeSituational try-on — bridge to Identity Gap and Performed identity
PostureEmbodied signal — fastest audience read; pairs Interoception

Mythopoiesis authors the story; this stack names which layer you are actually moving when identity feels stuck.

Applications

Separating what is given from what is trainable; choosing an attitude even when the temperamental pull is strong; using posture as the fastest lever on attitude; building finer distinctions so the words you have match the differences that matter.

Sources

Cite

Conditioning

Adjacent

Temperament · Personality · Attitude · Posture · Identity · Narrative identity · Agentic properties · Person in context