Opinion

In general, an opinion is a belief about matters commonly considered to be subjective, and is the result of emotion or interpretation of facts. An opinion may be supported by an argument, although people may draw opposing opinions from the same set of facts. Opinions rarely change without new arguments being presented. It can be reasoned that one opinion is better supported by the facts than another by analysing the supporting arguments. In casual use, the term opinion may be the result of a person's perspective, understanding, particular feelings, beliefs, and desires. It may refer to unsubstantiated information, in contrast to knowledge and fact-based beliefs.

Collective or professional opinions are defined as meeting a higher standard to substantiate the opinion. (see below)

Read more about Opinion:  Epistemology

Famous quotes containing the word opinion:

    The man who never alters his opinion is like standing water, and breeds reptiles of the mind.
    William Blake (1757–1827)

    How can a man be satisfied to entertain an opinion merely, and enjoy it? Is there any enjoyment in it, if his opinion is that he is aggrieved? If you are cheated out of a single dollar by your neighbor, you do not rest satisfied with knowing that you are cheated, or with saying that you are cheated, or even with petitioning him to pay you your due; but you take effectual steps at once to obtain the full amount, and see that you are never cheated again.
    Henry David Thoreau (1817–1862)

    I haven’t much opinion of words.... They’re apt to set fire to a dry tongue, that’s what I say.
    Ellen Glasgow (1874–1945)