liberty that is consistent with necessity and this is the ability to do what you desire - not logical necessity (2+2=4)
Constant Conjunction
we assume A will alwaysfollow B e/g brick thrown at a glass will result in the glass smashing - not always possible (all we really find in nature and human nature)
Liberty requires necessity
Liberty and determinism are compatible
Hume on Freedom
Our desires come from our personality - it is 'doing what I desire' rather than 'choosing what I desire'