By Margaret Lowenfeld

Although it is impossible, because of the width and variety of its range, to devise a formal definition for thought, it is generally held at present that there is an indivisible bond between thought and words. If this be true then without words there can be no thought, and since a mastery of language sufficient for use for interior speech, for the description by the self to the self of what is happening in the self is not present before 7/8 years then it must follow that the power of thought begins in those years and is not present before.