Language would have evolved first as an internal object, a kind of "language of thought" (LOT), with externalisation (hence communication) an ancillary process. I can't review here the strong and growing evidence to support this conclusion, but I have elsewhere. There are ample reasons why having a LOT would confer selectional advantage: the person so endowed could plan, interpret, reflect, etc., in ways denied to others.
Noam ChomskyIn Europe there's an dangerous growth of ultra xenophobia which is pretty threatening to any one who remembers the history of Europe... and an attack on the remnants of the welfare state. It's hard to interpret the austerity-in-the-midst-of-recession policy as anything other than attack on the social contract.
Noam ChomskyFor those of us who got into good colleges or the professions, did we stand up to that high school history teacher who told us some ridiculous lie about American history and say, "That's a ridiculous lie. You're an idiot"? No. We said, "All right, I'll keep quiet, and I'll write it in the exam and I'll think, yes, he's an idiot." And it's easy to say and believe things that improve your self-image and your career and that are in other ways beneficial to yourselves.
Noam ChomskyThe U.S. directed the war against South Vietnam. There was a political settlement in 1954. But in the late '50's the United States organized an internal repression in South Vietnam, not using its troops, but using the local apparatus it was constructing. This was a very significant and very effective campaign of violence and terrorism against the Vietminh - which was the communist-led nationalist force that fought the French. And the Vietminh at that time was adhering to the Geneva Accords, hoping that the political settlement would work out in South Vietnam.
Noam Chomsky