It was his belief in his father's indifference or dislike that hardened and imbruted him; it is only when he hears how that father loved him that I now melt his pride and curb his passions.
I and many others around the world are of the strong belief that the universe was created by a Flying Spaghetti Monster.
Aristotle argued the law of non-triviality was an inevitable belief for all people because denying it is not possible if a person is going to behave in a discriminating way.
Meaning of belief for the defined word.
Grammatically, this word "belief" is a noun, more specifically, a countable noun and a singularia tantum.