Put himself upon his good behavior.

Put himself upon his good behavior.

To throw a blot on a man's reputation by praising him.

To throw a blot on a man's reputation by praising him.

Needle in a bottle of hay.

Needle in a bottle of hay.

To say that which is instructive and also pleasing.

To say that which is instructive and also pleasing.

Like his that lights a candle to the sun.

Like his that lights a candle to the sun.

A thorn in the flesh.

A thorn in the flesh.

As clear as a whistle.

As clear as a whistle.

To give importance to trifling matters.

To give importance to trifling matters.

Something given that way.

Something given that way.