Keep your nose to the grindstone. It sharpens your boogers.
Ya think that the whiskey tastes good? Try a big cup of sobriety - now that is the good stuff!
Guitar players never listen to lead singers.
The crows may crow, but the hens deliver the goods.
It doesn't feel good when you're put down, and especially for no uncertain reason.
I remember the first guy who offered me a joint in the bathroom. I said 'No, man, I've got enough problems.'