I’d like to promote a new rule for all of humanity to follow: Before offering an opinion on anything, take some time to consider the things that you’re assuming in arriving at your opinion, and then, when you state this opinion, preface it with a list of all those things so that those to whom you’re offering your opinion might understand the amount of authority you have in speaking to whatever issue is the topic of conversation.

If you find that your point would lack the brevity necessary to be effective because the accompaniment of assumptions is too long, perhaps consider that your opinion may not be worth stating at all.