The tyranny must be excessive--intolerable.
"2.

The tyranny must be manifest, manifest to men of good sense and right feeling.
"3.

The evils inflicted by the tyrant must be greater than those which would ensue from resisting and deposing him.
"4.

There must be no other available way of getting rid of the tyranny except by recurring to the extreme course.
"5.

There must be a moral certainty of success.
"6.