With reasonable men, I will reason; with humane men I will plead; but to tyrants I will give no quarter, nor waste arguments where they will certainly be lost.

Since the creation of the world there has been no tyrant like Intemperance, and no slaves so cruelly treated as his.

The world is made up for the most part of morons and natural tyrants, sure of themselves, strong in their own opinions, never doubting anything

When man turns tyrant it is his own freedom he destroys.

The evils of tyranny are rarely seen but by him who resists it

It's said that 'power corrupts', but actually it's more true that power attracts the corruptible. The sane are usually attracted by other things than power. When they do act, they think of it as service, which has limits. The tyrant, though, seeks mastery, for which he is insatiable, implacable.