Well, if you were into linguistics, then you would have no trouble with that. Here are several things for you: there are 2 main approaches to language in this respect. The modern view that of Lakoff, Johnson and their cognitivist followers and critics is that language reflects thought with thought being primary (language as the container of thought) [see Lakoff and Johnson “Metaphors we live by”]. The second approach is that language (especially language in use) also affects thinking thus being the determinant of thought. The latter can be illustrated by let’s say a speaker entering a different language environment (cockney English with its rhyming slang, for instance). However, it is quite commonly accepted that language wouldn’t exist if there were no thought since language is a rational system that forms as a thinking process result. Well, that was very brief and, hopefully, to the point.