be of the opinion that
To have a particular belief, thought, or view. My mom is of the opinion that people should buy homes instead of renting, but I just don't have that kind of money for a down payment. My grandmother was always shushing us because she was of the opinion that children should be seen and not heard. A: "Aunt Mary is of the opinion that everything we're doing with our son is wrong." B: "Yeah, well, what else is new?"
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