What is tyranny?

A tyrant (Greek τύραννος, tyrannos), in its modern English usage, is an absolute ruler unrestrained by law or constitution, or one who has usurped legitimate sovereignty. A tyrant usually controls almost everything, and is considered a ruler of horrible and oppressive character.[1] The original Greek term, however, merely meant an authoritarian sovereign without reference to character,[2] bearing no pejorative connotation during the Archaic and early Classical periods, though it was clearly a bad word to Plato, and on account of the decisive influence of political philosophy its negative connotations only increased down into the Hellenistic period.

Plato and Aristotle define a tyrant as, "one who rules without law, looks to his own advantage rather than that of his subjects, and uses extreme and cruel tactics—against his own people as well as others".[3] During the seventh and sixth centuries BC, tyranny was often looked upon as an intermediate stage between narrow oligarchy and more democratic forms of polity. However, in the late fifth and fourth centuries, a new kind of tyrant, the military dictator, arose, specifically in Sicily.
 

What is liberty?

Liberty is the power to do as one likes.[1] In philosophy, the idea of liberty involves free will as contrasted with determinism.[2]In politics, liberty is freedom from government coercion.[3] In theology, liberty is freedom from the bondage of sin.[4]
 

What is freedom?

1. The state of being free or at liberty rather than in confinement or under physical restraint:

He won his freedom after a retrial.

2. Exemption from external control, interference, regulation, etc.

3. The power to determine action without restraint.

4. Political or national independence.

5. Personal liberty, as opposed to bondage or slavery:

A slave who bought his freedom.

6. Exemption from the presence of anything specified (usually followed by from):

Freedom from fear.

7. The absence of or release from ties, obligations, etc.