The pure state of nature, or "the natural condition of mankind", was described by the 17th century English philosopher Thomas Hobbes in "Leviathan" and his earlier work "De Cive". Hobbes argued that natural inequalities between humans are not so great as to give anyone clear superiority; and thus all must live in constant fear of loss or violence; so that "during the time men live without a common power to keep them all in awe, they are in that condition which is called war; and such a war as is of every man against every man". In this state, every person has a natural right to do anything one thinks necessary for preserving one's own life, and life is "solitary, poor, nasty, brutish, and short" ("Leviathan," Chapters XIII–XIV). Hobbes described this natural condition with the Latin phrase (bellum omnium contra omnes) meaning (war of all against all), in "De Cive".