Originally Posted by Mr. Charlie

... language apparently plays a far greater role in our lives than we give credit. We think of it as a tool to communicate, but reasearch suggests language directly effects the world we perceive, so much so that some cultures are blind to certain colours because their language has no words for said colours. In other words language not only describes but also creates the world we see.

I'll post a link if I can find the study. It was really surprising.