We disagree on the meaning of the words.
Right:
# Conforming with or conformable to justice, law, or morality: do the right thing and confess.
# In accordance with fact, reason, or truth; correct: the right answer.
# Fitting, proper, or appropriate: It is not right to leave the party without saying goodbye.
Power:
# The ability or capacity to perform or act effectively.
# A specific capacity, faculty, or aptitude. Often used in the plural: her powers of concentration.
# Strength or force exerted or capable of being exerted; might.
One has the power to rape and murder. The government can bring charges against him for those acts. One has the right as a juror to nullyfy and the right as a citizen to own property. The government cannot bring charges against him for those acts.
JOHN ADAMS (1771): It's not only ....(the juror's) right, but his duty, in that case, to find the verdict according to his own best understanding, judgement, and conscience, though in direct opposition to the direction of the court.
JOHN JAY (1794): The jury has a right to judge both the law as well as the fact in controversy.
SAMUEL CHASE (1804): The jury has the right to determine both the law and the facts.
The reason for having juries is to act a a hedge against the government's power.
As for those quotes, provide citations, please.