answer: According to Lynne Truss , a British writer on grammar, many non-writers avoid the colon and semicolon for various reasons: "They are old-fashioned", "They are middle-class", "They are optional", "They are mysteriously connected to pausing", "They are dangerously addictive (vide Virginia Woolf)", and "The difference between them is too negligible to be grasped by the brain of man".