"A man may feel so completely thwarted that he seeks no form of satisfaction, but only distraction and oblivion. He then becomes a devotee of "pleasure." That is to say, he seeks to make life bearable by becoming less alive. Drunkenness, for example, is temporary suicide: the happiness that it brings is merely negative, a momentary cessation of unhappiness."
January 1, 1970
https://en.wikiquote.org/wiki/The_Conquest_of_Happiness