1. Something we accept it and believe it is true
2. Argument
   1. Poor Argument
      1. Lack of facts, examples and evidences
   2. Good Argument
      1. Supported by reasoning, facts, evidences and examples
      2. Clear and explicit
3. Conscious/warranted assumption
   1. It is tool to solve problems
   2. Based on standards, codes, customs or agreements
4. Unconscious/ unwarranted assumption
   1. Assumption that lead to faulty reasoning
5. Value Assumption
   1. Is the belief we assume everyone belief
   2. Our lives are shaped and guided by value assumption
   3. Different family and culture have different value assumption
6. Hidden assumption
   1. Unconscious assumption
   2. Greatly influence a line of reasoning