You've no idea what a poor opinion I have of myself-and how little I deserve it. — W. S. Gilbert. English dramatist, poet and illustrator (1836–1911)
If you wish in this world to advance, your merits you're bound to enhance; You must stir it and stump it, and blow your own trumpet, or trust me, you haven't a chance.
Merely corroborative detail, intended to give artistic verisimilitude to an otherwise bald and unconvincing narrative.