Chivalry and religion were mutually influenced during the period of the Crusades. The early

of people's attempts to work out the most mutually beneficial ways of living and working

This is a mutually-beneficial relationship.

prompted by ever increasing encounters between peoples who lived very different and mutually unfamiliar lives,

This is a mutually-beneficial relationship.

We say they can ‘tell us anything’ but in practice, the topics any of us are really prepared to listen to is small, and lovers unconsciously mutually know it.

prepared to listen to is small - and lovers unconsciously mutually know it.

that haven’t previously been available and so forth, so it was a mutually agreed- upon

be mutually beneficial.

mutually exclusive.

mutually perpendicular.