a scale, in Scientology, which shows the emotional tones of a person. These, ranged from the highest to the lowest, are, in part, serenity, enthusiasm (as we proceed downward), conservatism, boredom, antagonism, anger, covert hostility, fear, grief, apathy. An arbitrary numerical value is given to each level on the scale. There are many aspects of the Tone Scale and using it makes possible the prediction of human behavior. For further information on the Tone Scale, read the book Self Analysis by L. Ron Hubbard. —Knowingness (Quotes Bk II) Approved Glossary