Final answer:
The idea 'to secure these rights, Governments are instituted among Men' is central to the social contract theory found in the Declaration of Independence, reflecting John Locke's philosophy that government exists to protect individuals' inalienable rights and derives its power from the consent of the governed.
Step-by-step explanation:
The idea that 'to secure these rights, Governments are instituted among Men,' refers to a fundamental concept in political philosophy known as the social contract. This concept is articulated in the Declaration of Independence, which was influenced by the ideas of philosopher John Locke. Locke's philosophy posited that individuals have certain inalienable rights, including Life, Liberty, and the pursuit of Happiness, and that it is the role of government to protect these rights. Moreover, the government derives its legitimacy from the consent of the governed. This establishes that people are willing to be governed as long as the government upholds its duty to protect their natural rights. If the government fails to do so, the people have the right and duty to alter or abolish that government and establish a new one that will secure their safety and happiness.