Sorry, couldn't resist plagiarizing the subject.

Tired of having the Alterians and other goody two shoes declare war on your malevolent race before you are ready?  well here is my nerf.

As you colonize early collect 20-30 points in Pragmatic and the rest in malevolent .  Do not spend any in Pragmatic yet, start cashing malevolent any time after you have at least 20 in Pragmatic.  Remember every trait in M raises the ones in P by 5 ( hence saving 20-30 points in P) You want to be able to collect the pragmatic trait that prevent the AI from declaring war on you for 50 turns but wait till they are just about to do so.  You can tell when its close by checking the diplomacy screen.  Furious with 2 or trend arrows is a really good indication.  This lets you concentrate more on economy building vs a war footing. As soon as you think someone is about to go to war with you cast your unlock no war and you have 50 turns to shift to war research and build you fleets.  Works great even on insane.