It isn't always the Mothers, but it certainly seems that it is always a woman.
The Russian proverb says "Clever father clever daughter, clever mother clever son". That supports this inference.
Change this and that and try again. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras mattis consectetur purus sit amet fermentum.