We are NOT recommending to use quotes in the Introduction.
Do not use a period or comma as well as a question mark or exclamation point. Barzun, Jacques, and Henry F. I know of no shortcuts. Maintaining clarity and readability Introduce a quotation either by indicating what it is intended to show, by naming its source, or by doing both. Adams clearly appreciated religion, even if he often questioned its promotion.
Here are a few examples of situations when you might need brackets: Changing verb tense or pronouns in order to be consistent with the rest of the sentence.
NO: In this study, children were taught effective ways to deal with confrontations through role playing. If that passage exceeds four lines some sources say fivethen set it off as a block quotation.
Or, if proper usage gets in the way, it may have to go. Some of these authors recorded their thoughts on writing in books, some as essays, and some as letters to their friends, lovers, and editors.
When not writing or rewriting, read.
Thus, the exclamation mark is considered to be part of the original quotation. Two quotes in the main body will do just fine.