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:

    We too had many pretty toys when young;
    A law indifferent to blame or praise,
    To bribe or threat; habits that made old wrong
    Melt down, as it were wax in the sun’s rays;
    Public opinion ripening for so long
    We thought it would outlive all future days.
    William Butler Yeats (1865–1939)

    Nothing can contribute more to peace of soul than the lack of any opinion whatever.
    —G.C. (Georg Christoph)

    Three things there be in man’s opinion dear,
    Fame, many friends, and fortune’s dignities:
    False visions all, which in our sense appear,
    To sanctify desire’s idolatry.
    Fulke Greville (1554–1628)