This is a fascinating subject, and I've done a lot of research on it.
The best book I've seen that addresses your premise (and actually refutes it) is Steven Pinker's book "The Language Instinct"
In the book, he pretty much proves (to my satisfaction) the following:
#1. All languages on the planet are EXACTLY equivalent, have the same general structure, although there are actually two slightly different structures
in use (Asian vs European) and humans can easily switch between the two of them. All languages follow one of these two main structures, including all
African, Asian, European languages.
#2. Words come from our thoughts, and not the other way around. We will invent words, describe their meaning quite precisely, and these words will
enter the population very easily.
#3. It appears that the ability to speak is instinctive in humans, and no other animals (including Gorillas or Apes) have this ability.
He shows, contrary to popular belief, even the most primitive societies on earth have highly sophisticated languages that are exactly equal (but never
lag or exceed) all the other languages. He describes how "pidgin" languages, such as Creole, are actually syntactically and semantically equivalent
to the Queen's English, no better or worse.
He also spends quite a bit of time discussing sign languages, which are completely capable of expressing the most abstract thought non-verbally. He
states that sign language is exactly equivalent in power to verbal language.
Finally, he discusses the ability of humans to spontaneously develop languages, citing an example of a society in Brazil, composed completely of deaf
people, who developed a completely unique language that was totally expressive.
So I think your premise is very good, but I think it has been refuted. You will coin a word for what you think -- define your word, and people will
instinctively understand you.
I don't consider Steven Pinker the end-all to this discussion. I believe he is generally correct, but perhaps not 100% so. I'm interested in any
other comments or opinions.
Edit: Fixed some spelling, as if that really matters.
[edit on 21-9-2008 by Buck Division]