A Covenant not to defend myself from force, by force, is always void. For... no man can transfer or lay down his Right to save himself from Death.
Thomas HobbesFor if I should not believe all that is written by Historians, of the glorious acts of Alexander, or Caesar; I do not think the Ghost of Alexander, or Caesar, had any just cause to be offended; or any body else, but the Historian. If Livy say the Gods made once a Cow speak, and we believe it not; we distrust not God therein, but Livy. So that it is evident, that whatsoever we believe, upon no other reason, then what is drawn from authority of men only, and their writings; whether they be sent from God or not, is Faith in men only.
Thomas HobbesThe most noble and profitable invention of all other, was that of SPEECH, consisting of Names or Appellations, and their Connexion; whereby men register their Thoughts; recall them when they are past; and also declare them one to another for mutuall utility and conversation; without which, there had been amongst men, neither Commonwealth, nor Society, nor Contract, nor Peace, no more than amongst Lyons, Bears, and Wolves.
Thomas Hobbes