3. How is "liberty" defined?

Broadly speaking, liberty is the ability to do as one pleases. It is a synonym for the word freedom. In modern politics, liberty is the state of being free within society from control or oppressive restrictions imposed by authority on one's way of life, behavior, or political views.

Liberty means the condition in which an individual has the ability to act following his or her own will and alternatively, achieve their potential, within the context of other words like political freedom. They argue that liberty without equality means the domination of the most powerful.

Explanation:

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.