be convinced

See: opine
References in classic literature ?
From the name of my patron, indeed, I hope my reader will be convinced, at his very entrance on this work, that he will find in the whole course of it nothing prejudicial to the cause of religion and virtue, nothing inconsistent with the strictest rules of decency, nor which can offend even the chastest eye in the perusal.
It wasn't only because I was opposed to operating on a cadaver as part of a yearlong course prescribed by all medical schools, but because I am the kind of person who would be convinced I had contracted a disease just by learning about its symptoms.