To live correctly or ethically, without deviating from the right line of duty.
live a lie
To conceal something about oneself, without the knowledge of which oth…
cut one's coat according to one's cloth
To live within one's means, without spending more than is affordable.
live over the brush
To cohabit without being married.
live in sin
To cohabit as if husband and wife without being married.
plough a lonely furrow
To carry out an action in isolation, or in an original way, without an…
play one's cards right
To act correctly; to make the right moves.