We live in a society dedicated to the rule of law; in which Parliament has power, subject to limited, self-imposed restraints, to legislate as is wishes; in which Parliament may therefore legislate in a way which infringes the rule of law; and in which the judges, consistently with their constitutional duty to administer justice according to the laws and usages of the realm, cannot fail to give effect to such legislation if it is clearly and unambiguously expressed.引自 the sovereignty of parliament