I am trying to put this into practice.  In this world of constant negativity and so many trying to put someone or something down to lift themselves to a higher position, it's hard sometimes not to become angst-ridden and join the hordes of whiners and haters. There's nothing wrong with having strong opinions and beliefs, but I'd so much rather spend my time focusing on and promoting what's right and positive than becoming a bitter, whining sourpuss.  Nobody needs that, including me. So, I am learning to just "zip it". As my mom used to say - "If you can't say something nice, don't say anything".  I am tired of thinking about the evil, the jerks, the users, the selfish and what's wrong with the world.  That exhausts me and just gives them play time and wastes my thoughts and energy on regurgitating negativity.  I'm definitely not there yet, but here's what I am shooting for:

"whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report; if there be any virtue, and if there be any praise, think on these things.
Phillipians 4:8