Collect facts about your subject. This can involve internet searches, collecting books from the library and so forth. Make many notes on separate sheets of paoer. Begin with examining the history of the subject. Identity human conflicts associated with he subject. Examine the extremes of claims about the subject. Discuss the claims with the facts. Forget about using what you refer to as "idioms". They are not important. Use literalisms. Make decisions as to what is true and what is false based upon the facts.