It's almost impossible to find harmony with truth, they are in contradiction, because the more truth you see the less harmony you feel, particularly when you look around at the world.
It might be easy for a Budhist to find harmony and truth at the same time, but it does take a real impartial dissolution from the simple concerns and wants of humanity. Few could ever live in the real world and find that, so sadly you have to pick one or the other, unless we all adhere to Buddhist belief and remove ourself from desire, but greed and selfishness is our watch word, yes?
Hey I know this: I aint gonna be a perfect person who disolves himself from wants, and neither are the rest of us unfortunately. We can't realistically behave that way, because we are set in a world that works against such concerns. Will it always be this way? probably...
I'll go truth, truth hurts, but at least it's keeping it real. Harmony is for another time, or another race other than humans.