"The human race divides politically into those who want people to be controlled and those who have no such desire." R. A. Heinlein
Your past posts here indicate you'll be unable to grasp this point, but I'll take a stab at it anyway:
The definitions have changed during the lifespan of this nation. In the time of the Founding Fathers, a "liberal" sought to expand individual liberty and spread authority away from the State; a "conservative" had the aim of conserving authority in the Monarchy or other central authority.