Sentence examples similar to a grain of mud from inspiring English sources

Potamopyrgus antipodarum, or, as it is more commonly known, the New Zealand mud snail, is a tiny aquatic snail about the size of a grain of rice.

Or a grain of rice.

Both explanations have a grain of truth.

The world in a grain of sand.

The legend contains a grain of truth.

Take it with a grain of salt.

"As small as a grain of dust"?

Take with a grain of salt.

Or a grain of sand.

Take this with a grain of salt.

Take 'em with a grain of salt.