Lafontaine had conviction and self-assurance, but his elocution was very bad for poetry.
"You too will suffer," said the old Raot, with self-assurance.
I walked into the front office with a lot of self-assurance.
There was an easy strength and self-assurance in her carriage.
The street had given him his self-assurance, his ready tongue and his wit.
Who robbed you of ...