It is the privilege to have and say what you feel. To marry and date whom you wish. It is basic to any individual. Without Liberty it is a chance you may not be who you are today. Freedom allows you independence from slavery of any kind, shape, form, or fashion.
Freedom is the privilege to chose.
This gives us the right to your our opinion and what you wish to do with your future. The four concepts that I have mentioned above, Language, Knowledge, Discovery, and Liberty all come together to make Freedom happen in our society. Without language you may not be able to communicate. Without communication you may not be able to teach others what you know. Not being able to educate, you will not be able to find out what new things are being discovered.