Definition.com
Speaking is distinguished from talking in that a fool may talk, but a wise man speaks.
Definition.com
Speaking is, along with thinking, a way to undertake to clarify things, forcing us to exacerbate them, dislocate them, schematize them. Every concept is in itself an exaggeration.
Definition.com
Speaking is done according to rules, just as thinking is done according to nature, and action is done according to custom.
Definition.com
Speaking is to be in a position to use a certain syntax, to grasp the morphology of this or that language, but it means above all to assume a culture, to support the weight of a civilization.