Men are Endowed by Their Creator with Certain Unalienable Rights

The basic rights of man come from God, not any governmental authority.

Unalienable Rights are also called Natural Rights by the Founders.
William Blackstone wrote: "Those rights, then, which God and nature have established, and are therefore called natural rights, such as are life, and liberty, need not the aid of human laws to be more effectually invested in every man that they are; neither do they receive and additional strength when declared by the municipal laws to be inviolable. On the contrary, no human legislature has the power to abridge or destroy them, unless the owner shall himself commit some act that amounts to forfeiture."
That is to say -- we as individuals can do things that will cause us to lose our unalienable rights but no one else can take them away from us.

From the Declaration of Independence: " . . . among these are Life, Liberty, and the pursuit of happiness."

Blackstone defines them this way: ". . . these [great natural rights] may be reduced to three principle or primary articles: the right of personal security; the right of personal liberty, and the right of private property . . .]

Vested Rights are those that are created by the community, state or nation and are hopefully created for our protection, safety or well being. Vested Rights can be taken away by those that created them.