Jainism doesn’t have a specific doctrine about Esperanto or any particular language. Like all tools of communication, language is judged by how it is used.

Key Jain principles that apply:

• Ahimsa (non-violence) and Satya (truth): Speak truthfully and kindly, avoid causing harm through words or misrepresentation.
• Anekantavada (non-absolutism): Be open to different languages and ways of expression; truth can be approached from many perspectives.
• Aparigraha (non-attachment) and aparoksha focus on inner conduct: The value lies in ethical communication, not in the language itself.
• Samayik and vivek (mindfulness and discernment): Choose languages or ways of communicating that reduce conflict and uplift all beings.

In practice:

• Esperanto’s goal of broad, neutral communication aligns with Jain ideals of reducing conflict and fostering understanding, provided it is used respectfully and without coercion or deception.
• The ethical emphasis would be on how one uses any language: to tell the truth, avoid harm, practice humility, and promote well-being.

If you’d like, I can share a concise Jain explanation of how to communicate ethically across languages.