My personal favorite original orcish proverb is "The axe is the sharpest fist you've got." It's unexpected, absolutely deep, and just dumb enough that Garrosh would say it, like a picture off-center but barely noticeable. I think I really like the imagery. "Luckily, puny human, the axe that I carry is the sharpest fist that I've got!"
What do you guys got for me? Let's hear your orcish proverbs. When you stand in front of Garrosh Hellscream as he instructs you to head to the uncharted island of Pandaria, what will his words of wisdom be?