IT SEEMS THAT THERE ARE CERTAIN DEFINITE MENTAL PROCESSES BOUND UP WITH THE WORKING OF LANGUAGE, PROCESSES THROUGH WHICH ALONE LANGUAGE CAN FUNCTION. I MEAN THE PROCESSES OF UNDERSTANDING AND MEANING. THE SIGNS OF OUR LANGUAGE SEEM DEAD WITHOUT THESE MENTAL PROCESSES; AND IT MIGHT SEEM THAT THE ONLY FUNCTION OF THE SIGNS IS TO INDUCE SUCH PROCESSES, AND THAT THESE ARE THE THINGS WE OUGHT REALLY TO BE INTERESTED IN. - LUDWIG WITTGENSTEIN, THE BLUE BOOK