His family - and especially his slaves and freedmen - owed a reciprocal duty of cult to his genius.

The reciprocal duties and obligations of the medical profession and the public.

They had the intention of reciprocal duty of support.

The reciprocal duty of the subject towards the Crown is that of allegiance.

The pater familias was therefore owed a reciprocal duty of genius cult by his entire familia.

Historically, it was usual for there to be reciprocal duties between lord and tenant.

"Where opportunities are given, for example, to young people, for real jobs and skills, there should be a reciprocal duty to take them up."

The reciprocal duties of master and apprentice make a considerable article in every modern code.