What does "expressions of opinion" mean?

Expressions of opinion should be supported by reference to the authority on which they are made and the verifiable facts which support them.

  • 1
    If I say "wind is unpleasant" that is an "expression of opinion" – it is my opinion. The sentence requires that I back up that opinion with references as stated. The sentence is somewhat contradictory though, because if I cite an authority or verifiable facts, that is no longer an opinion. Jul 19 '20 at 14:19
  • @WeatherVane: I am not in complete agreement with you about its contradictoriness; I'd say its still an opinion. You might cite an authoritative anthropologist, who states that humans developed clothing because of the unpleasantness of wind, or various facts about unconscious reactions to wind. However "wind is unpleasant" remains an opinion because ,despite all that, I still find wind pleasant.
    – sharur
    Jul 30 '20 at 8:53
  • @sharur I agree, and it not about one's preferences. It may be my opinion that wind causes an elevation of mood and I must show studies or surveys that back up the opinion. Jul 30 '20 at 8:57

An expression is the process of transmitting ideas, such as thoughts, concepts, or feelings, between entities (such as individuals or groups).

An opinion is a judgement or view; thus it is not a fact or truth.

An "Expression of Opinion" is used in your example to distinguish between an "Expression of Fact", which would not necessarily need the references that are required for an "Expression of Opinion".

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