Concepts as Tools of Thought

This article on, of all things, lego naming, is interesting because it confirms the Objectivist view that concepts are primarily tools of cognition, not tools of communication. (In other words, even on a desert island, you'd have a crucial need of concepts held as words.) Here's the salient paragraph (emphasis added):

Our small, international cast (half Brits, half Americans) is made up of four children. First, my seven-year-old son Barney, who surveyed the list as if it was another piece of homework. His friend, Jem, also seven, went through the list and then wanted to do it again. Five-and-a-half-year-old Max didn’t hesitate to name every piece. Six-year-old Raimi often builds spaceships, but has never referred to the pieces by name, until prompted by his father—at which point he revealed that he possessed names for all of them in his head.

HT: TUEditors