Everyone needs to read Home on the Range

Find her Brigid's writings here for the rest of this work:

The Right to Life, Liberty and the Pursuit of Happiness. The phrase, penned by Thomas Jefferson in the Declaration of Independence and written 11 years before the U.S. Constitution was adopted, is said to have been influenced by the writings of John Locke, who expressed a similar concept of life, liberty and estate (property) in his work.

What is a Right? It's a principal that defines and sanctions a man's freedom of action within a social framework. There are many rights, but the one true right is the right to life, not in the context of the right to be born, but a man's right to his own life.
What is liberty? Again, I think Jefferson was somewhat influenced by the words of John Locke, who said in The Second Treatise of Civil Government (1690) -

The natural liberty of man is to be free from
any superior power on earth, and not to be under
the will or legislative authority of man,
but to have only the law of nature for his rule...
freedom of men under government is, to have
a standing rule to live by, common to every one
of that society...
and not to be subject to the inconstant, uncertain, unknown,
arbitrary will of another man....

Life and liberty as integral parts to a whole. He goes on to say:

This freedom from absolute, arbitrary power,
is so necessary to, and closely joined with a man’s preservation,
that he cannot part with it,
but by what forfeits his preservation and life together:
for a man, not having the power of his own life,
cannot, by compact, or his own consent,
enslave himself to any one....