Sage leaf

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.

Who is this for?

Humans

Humans

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

AI Agents

AI Agents

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

Developers

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

Practical Wisdom

phronesis

What is genuinely good, bad, and indifferent

Unified Assessment
Justice

Justice

dikaiosyne

What is owed to others — distributing to each their due

Unified Assessment
Courage

Courage

andreia

What is genuinely fearful and what is not

Unified Assessment
Temperance / Self-Mastery

Temperance / Self-Mastery

sophrosyne

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

Unified Assessment

How Stoic Scoring Works

1

Describe your action

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

2

Virtue analysis

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

3

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 katorthoma proximity scale and the Five Stages of Practice are the project’s constructs on the Stoic distinction between the appropriate act and the perfectly virtuous act. The ancient texts give two categories — sage and non-sage — and three grades of progress toward wisdom (Seneca, Epistulae 75). The scale and the stages are the project’s realisation of those categories as a practical instrument.

The logos flame — the Perfect Sage
The Perfect Sage
The Inner Fire — Stage of Practice
Sage-like(sage_like)The Inner Fire
The Clear Summit — Stage of Practice
Principled(principled)The Clear Summit
The Crossroads — Stage of Practice
Deliberate(deliberate)The Crossroads
The Worn Path — Stage of Practice
Habitual(habitual)The Worn Path
The Storm — Stage of Practice
Reflexive(reflexive)The Storm

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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