"This country, with its institutions, belongs to the people who inhabit it. Whenever they shall grow weary of the existing government, they can exercise their constitutional right of amending it, or exercise their revolutionary right to overthrow it." --Abraham Lincoln
Rather an odd thing to say considering he thought that the states did not have a right to peacefully secede from that government.
He preferred that there be a violent revolution than that a disgruntled state should peacefully exit the union.