Duty is what one expects from others.

The one duty we owe to history is to rewrite it.

If one hears bad music it is one's duty to drown it by one's conversation

Mr. Henry James writes fiction as if it were a painful duty.

What we have to do, what at any rate it is our duty to do, is to revive the old art of Lying.

The longer I live, the more keenly I feel that whatever was good enough for our fathers is not good enough for us.