To have a smattering knowledge of anything.

To have a smattering knowledge of anything.

Within a stone's throw of it.

Within a stone's throw of it.

To build castles in Spain.

To build castles in Spain.

As cold as cucumbers.

As cold as cucumbers.

To seek a laurel wreath from a bride-cake. [To seek glory by
some trifling performance. A carpet knight.]

To seek a laurel wreath from a bride-cake. [To seek glory by
some trifling performance. A carpet knight.]

Diamonds cut diamonds.

Diamonds cut diamonds.

A thorn in the flesh.

A thorn in the flesh.

To swallow gudgeons ere they're catch'd.
And count their chickens ere they're hatch'd.

To swallow gudgeons ere they're catch'd.
And count their chickens ere they're hatch'd.

Turn over a new leaf.

Turn over a new leaf.