Have you ever been hurt and the place tries to heal a bit, and you just pull the scar off of it over and over again.
Source: In Simpson's Contemporary Quotations, by James B. Simpson, 1988.
-- Rosa Parks, (Feb 4 1913-2005), US civil rights leader; Her refusal to give up bus seat to a white man initiated a bus boycott and sparked the civil rights movement; won Spingarn, 1978.