As soon as the paper is out of his hands he becomes a different—an affable man.

MARY. [Giving him a match] D'you mind writing in here this morning, Dad? Your study hasn't been done. There's nobody but Cook.

MR MARCH. [Lighting his pipe] Anywhere.

He slews the armchair towards the fire.

MARY. I'll get your things, then.

She goes out.

JOHNNY. [Still on the fender] What do you say, Dad? Is civilisation built on chivalry or on self-interest?

MR MARCH. The question is considerable, Johnny. I should say it was built on contract, and jerry-built at that.

JOHNNY. Yes; but why do we keep contracts when we can break them with advantage and impunity?

MR MARCH. But do we keep them?