Alterius non sit qui suus esse potest

Alterius non sit qui suus esse potest is a phrase in Latin.
It means '"Let no man be another’s who is able to be his own.”
This phrase is referenced from the Aesopian fable De ranis . The fable's author is suspected to be an anonymous medieval person who may have been Gualterus Anglicus. The Italian version has the title of Le rane chiedono un re. The English version has the title of The Frogs Who Wished for a King. The lesson of the tale is that relinquishing individual autonomy in the pursuit of order results in a false protector, or worse, a predatory overlord.
The phrase was the personal motto of Philippus Aureolus Theophrastus Bombastus von Hohenheim who had it inscribed, in German, to his portraits.
Cicero in De re publica also wrote in similar vein, «est enim genus iniustae servitutis, cum hi sunt alterius, qui sui possunt esse». It means that only in such rare case of capability for potential independence that the slavery be considered unjust.