Which one of John Locke's ideas appeared in the Declaration of Independence?

John Locke's beliefs in natural rights appears in the Declaration of Independence in the form of the preamble stating: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness."

Locke believed that man had the unalienable rights of life liberty and the pursuit of property.