The correct answers are "social contract" and "absolute government".
Thomas Hobbes was a British philosopher vastly known for his widely influential work "Leviathan", published in 1651. In this book, he sets the key foundation of social contract theory and greatly develops upon it. To Hobbes, a government should represent an objective morality that holds authority in order to prevent society to decay into chaos. In other words, society needs a strong central power that keeps them safe from themselves, and that's how he legitimized absolute government.
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