As Hobbes acknowledged, this account of human nature emphasizes our animal nature, leaving each of us to live independently of everyone else, acting only in his or her own self-interest, without regard for others. This produces what he called the "state of war," a way of life that is certain to prove "solitary, poor, nasty, brutish, and short." (Leviathan I 13) The only escape is by entering into contracts with each other—mutually beneficial agreements to surrender our individual interests in order to achieve the advantages of security that only a social existence can provide.