Actress Uma Thurman has paid a tribute to the single mothers of the world because she understands how difficult it is to raise children alone.
According to Contactmusic.com, Thurman, who has two children with ex-husband Ethan Hawke, says that every working mom is a superwoman.
She says: "I have learned that every working mom is a superwoman. For the most of the world, it is really a necessity. The stay-at-home mom is over - not just because of women's liberation but because of men's liberation from wanting to be the breadwinners."