cliché: all that glitters is not gold

Meaning: A proverb: All that appears expensive and genuine isn't so.

Example: That minted coin looks like a good deal, but all that glitters is not gold.

Origins: In various forms dates before the 12^th century, perhaps even before Aesop, but in modern usage dates back to Shakespeare’s The Merchants of Venice.

Meaning, origins, and example. More examples.

Rewrites:

• all that sparkles is not diamonds
• all that shines is not silver
• gold and brass glitter alike
• much glitter is as good as the gutter
• fool's gold fools many fools

Discussion: I tried to stay true to the precious metals and gems roots of the saying, but can you imagine a recasting of this proverb in terms of flashy brands and gadgets?