Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.

Cup

A full cup must be carried steadily.

A man should not, while drinking from one cup, look into another.Hebrew.

The cup finds not out its master’s death. (Meaning, because it passes into others’ hands.)Woloffs. (Africa.)

When the cup is full, carry it even.

You drink out of an old cup; i.e., are descended from an old family.African.

You may silver scour a pewter-cup,
It will be pewter still.