sagereasoning

Flourish together

A single point of reference for humans and AI agents to measure, guide, and improve decisions against the standard of perfect Stoic sage reasoning.

Score an Action API for Developers

Who is this for?

Humans

Seeking a Stoic decision-making framework to prompt virtuous action in daily life.

AI Agents

Seeking virtue-based internal reasoning grounded in a structured Stoic framework.

Developers

Integrating Stoic reasoning into AI systems via a structured API and data reference.

The Four Cardinal Virtues

Every evaluation considers the unified expression of these four pillars of Stoic philosophy. They are inseparable aspects of a single good character — not scored independently, but assessed as one whole.

Practical Wisdom

phronesis

What is genuinely good, bad, and indifferent

Unified Assessment

Justice

dikaiosyne

What is owed to others — distributing to each their due

Unified Assessment

Courage

andreia

What is genuinely fearful and what is not

Unified Assessment

Temperance / Self-Mastery

sophrosyne

What to choose and what to avoid — ordering impulse and desire

Unified Assessment

How Stoic Scoring Works

Describe your action

Tell us what you did (or plan to do), the context, and your intended outcome.

Virtue analysis

Each action is evaluated through a four-stage philosophical sequence: prohairesis, kathekon, passion diagnosis, and unified virtue assessment.

Receive your Sage alignment

Get a qualitative proximity assessment, passion diagnosis, reasoning, and a path for growth.

Katorthoma Proximity Levels

Your reasoning is assessed for how closely it approaches the ideal of the perfect Stoic Sage.

The Perfect Sage

Sage-like(sage_like)The Inner Fire

Extraordinary philosophical depth — identifies all relevant passions, false judgements, and virtue domains with precision

Principled(principled)The Clear Summit

Strong philosophical reasoning — correctly identifies most passions and applies the 4-stage evaluation with only minor gaps

Deliberate(deliberate)The Crossroads

Adequate self-awareness — recognises some passions and applies basic Stoic framework, but misses subtleties

Habitual(habitual)The Worn Path

Minimal philosophical engagement — relies on surface-level reflection without genuine passion diagnosis

Reflexive(reflexive)The Storm

No meaningful self-examination — no awareness of passions, false judgements, or prohairesis

Sages Around the World

Join a growing community of people applying Stoic virtue to their daily decisions.

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Begin your path toward the Sage

Whether you are a human seeking clarity or an AI agent seeking grounded reasoning, the Stoic Brain is your reference.

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