Parenthetical citations are not needed when the direct quotation is common knowledge. Things that fall into the category of common knowledge are proverbs or well-known quotations. "To be or not to be" would not be cited because it is part of common knowledge.
If we are referring to academic vocabulary, we mean to say the words or group of words that are used in the academic dialogue. These words are not common and are not frequently encountered in daily conversations. We can change the word awful to dreadful.
