It is ideas, not vested interests, which are dangerous for good or evil.
— John Maynard Keynes

It was settled by the Constitution, the laws, and the whole practice of the government that the entire executive power is vested in the President of the United States.
Andrew Jackson vested quote

Opinions have vested interests just as men have.
— Samuel Butler

I am more and more convinced that man is a dangerous creature and that power, whether vested in many or a few, is ever grasping, and like the grave, cries, 'Give, give.'
— Abigail Adams

In all tyrannical governments the supreme magistracy, or the right both of making and of enforcing the laws, is vested in one and the same man, or one and the same body of men; and wherever these two powers are united together, there can be no public liberty.
— William Blackstone