The aphorism, the apophthegm, in which I am the first master among Germans, are the forms of "eternity"; my ambition is to say in ten sentences what everyone else says in a book-- what everyone else does not say in a book. Twilight of the Idols

If you will not fight for the right when you can easily win without bloodshed; if you will not fight when your victory will be sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves. Never Give In!

All men are enemies. All animals are comrades. Animal Farm

 The resulting food surpluses ... were a prerequisite for the development of ... innovative societies.  Guns, Germs And Steel