The document discusses various aspects of comprehension including why it is important and some of the challenges to comprehending language. It notes that complicated writing, strange words, connotations, and differences in context and perspective can make comprehending difficult. It then discusses different types of sentences such as statements, which can be true or false, and opinions, which should be supported by facts or experience. The document also covers degrees of truth and falsity, qualifiers that indicate strength of claims, and quantifiers about quantities.