● Call a spade a spade.
● Call me not olive till thou see me gathered.
● Call no man happy until he dies.
● Can the leopard change his spots?
● Care and diligence bring luck.
● Care brings grey hair.
● Care killed the cat.
● Cast not out the foul water till you bring in the clean.
● Cast not your pearls before swine.
● Catch the bear before you sell his skin.
● Cats hide their paws.
● Caution is the parent of safety.