Locke argued that natural rights such as life, liberty, and property existed in the state of nature and could never be taken away or even voluntarily given up by individuals. These rights were “inalienable” (impossible to surrender). Locke also disagreed with Hobbes about the social contract. For him, it was not just an agreement among the people, but between them and the sovereign (preferably a king).
According to Locke, the natural rights of individuals limited the power of the king. The king did not hold absolute power, as Hobbes had said, but acted only to enforce and protect the natural rights of the people. If a sovereign violated these rights, the social contract was broken, and the people had the right to revolt and establish a new government. Less than 100 years after Locke wrote his Two Treatises of Government, Thomas Jefferson used his theory in writing the Declaration of Independence.
Although Locke spoke out for freedom of thought, speech, and religion, he believed property to be the most important natural right. He declared that owners may do whatever they want with their property as long as they do not invade the rights of others.
