Drunkenness, for example, is temporary suicide; the happiness that it brings is merely negative, a momentary cessation of unhappiness. The narcissist and the megalomaniac believe that happiness is possible, though they may adopt mistaken means of achieving it; but the man who seeks intoxication, in whatever form, has given up hope except in oblivion.
Source: The Conquest of Happiness, 1930, chap. 1．
More info.: https://russell-j.com/beginner/HA11-040.HTM