There are people (you've probably noted it also) who have the unconscious faculty of making the world spin around themselves, throb and expand, contract and go dizzy. Then, when they are gone away, you feel sick and lonesome and meaningless.
In the chemistry lab at school, did you ever hold a test tube, pouring in liquids and powers and seeing nothing happen until a
certain liquid or a
certain powder is poured in and then everything begins to smoke and fume, bubble and boil, hiss to foam, and sometimes even explode? The tube is suddenly full of action and movement and life. Well, there are people like those certain liquids or powders; at a given moment they come into a room, or into a town, even into a country — and the place is never the same again. Things bubble, boil, change. Sometimes the whole world is changed. Alexander came. Christ. Marconi. A Russian named Lenin. (603)
Hughes, Langston. "Father and Son."
The Portable Harlem Renaissance Reader. Ed. David Levering Lewis. New York: Penguin, 1994. 599-627.