Objective communication—the principal aim of languages of any kind—meets with its greatest measure of success in science and art, which can both be precise, and therefore immune to misunderstanding born of vagueness or ambiguity, by giving specific expression to ideas. But, paradoxically, in order to reach specificity science and art must be developed along two opposite directions: in the first technical terminology replaces imagery-bearing words, in the second images are cultivated to the utmost. The scientist's procedure is entirely justified. For it is undeniable that words are often misleading. because they are clouded with different images in the minds of different people.