It is obvious that different individuals require different things to live good, healthy, and virtuous lives.

Libertarians typically argue that particular obligations, at least under normal circumstances, must be created by consent; they cannot be unilaterally imposed by others.

Obviously, all of us have been influenced by those around us.

Equality of rights means that some people cannot simply impose obligations on others, for the moral agency and rights of those others would then be violated.

What libertarians assert is simply that differences among normal adults do not imply different fundamental rights.

Guardians are necessary for children and abnormal adults, because they cannot make responsible choices for themselves.

Libertarians recognize the inevitable pluralism of the modern world and for that reason assert that individual liberty is at least part of the common good.