Speech is silver, silence is gold.

Literal

Eloquence [topic-は] silver, silence [topic-は] gold.

A Japanese rendering of the European proverb (originally attributed to Thomas Carlyle in English; has counterparts in Arabic and Hebrew). Very compact — just two parallel topic-comment structures with zero copulas. The absence of だ or である is a classic proverb-shape marker: bare nouns juxtaposed for maximum aphoristic punch.