Reference

Hermodorus was an Ephesian mentioned by the philosopher Heraclitus. According to the accounts, Heraclitus praised Hermodorus as the "worthiest man" among the Ephesians.

Heraclitus's praise stems from the context that the Ephesians exiled Hermodorus, an action which Heraclitus found deeply unjust. He even went as far as suggesting that the Ephesians should all kill themselves for this act of exile. This extreme statement underlines the high regard in which Heraclitus held Hermodorus, highlighting his view that Hermodorus was an exceptionally virtuous and capable individual unworthy of such treatment.

For more detailed information, you can refer to the Heraclitus Wikipedia page and the interpretation on How to Be a Stoic.