Sophist

A "sophist" or one who tries to live well and speak persuasivley (think clearly in the moment).  "Sophist" has a bad wrap currently because of Plato's obvious disregard for them in his books (and our current regard for Plato) c/o wiki:

The Sophists certainly were not directly responsible for Athenian democracy, but their cultural and psychological contributions played an important role in its growth. They contributed to the new democracy in part by espousing expertise in public deliberation, since this was the foundation of decision-making, which allowed and perhaps required a tolerance of the beliefs of others. This liberal attitude would naturally have precipitated into the Athenian assembly as Sophists acquired increasingly high-powered clients.^[9] Continuous rhetorical training gave the citizens of Athens "the ability to create accounts of communal possibilities through persuasive speech".^[10] This was extremely important for the democracy, as it gave disparate and sometimes superficially unattractive views a chance to be heard in the Athenian assembly.

That we now know sophistry as the most desultory of practices is due to Plato and the Abstract, who vociferously abrogated Sophists (those following from a sensorial pragmatic). Democritus, ever the democrat, split the middle.