To strike one's colours

To give currency

To carry the coal to Newcastle

In the organised society of today no individual or nation can <u><em>plough a lonely furrow</em></u…

He <u><em>got hold of the wrong end of the stick</em></u>.

To show one's teeth

French leave

Kamal told the audience <u><em>to hold their peace</em></u> until he had finished his address.

To keep one's head above water