Ye ca' hardest at the nail that drives fastest.
Meaning that a person pretends to work much harder than is really required.
Ye cangle about uncoft kids.
Literally, quarrel about unbought goods.
Ye canna do but ye ower-do.
Ye canna fare weel but ye cry roast-meat.
"Bolt thy fine meal, and eat good paste without report or trumpet blast. They that are thirsty drink silently."—French.
Ye canna gather berries aff a whinbush.
Ye canna get leave to thrive for thrang.