 In addition to fragments advancing these metaphysical and physical doctrines, there are a number of ethical fragments attributed to Democritus (but the question of authenticity looms large here); although a passage reported in John Stobaeus seems to link moderation and cheerfulness with small measured movements in the soul and says that excess and deficiencies give rise to large movements (DK68B191/LMD226), it is unclear whether or how these claims are related to the metaphysical aspects of atomism (Vlastos 1945 and 1946, Kahn 1985b). Democritus was identified in antiquity with the idea of “good cheer” (euthumiē) as the proper guiding objective in living one’s life. In this, as in other aspects of his philosophy, he may have had some influence on the formation of Epicurus’ philosophy a century later.