1. To introduce a quote as an example:
* "When talking about the importance of education, she used the quote, 'The only way to do great work is to love what you do.'"
2. To explain how a quote is being used:
* "He used the quote, 'A journey of a thousand miles begins with a single step,' to illustrate the importance of taking small steps towards achieving big goals."
3. To focus on the action of quoting:
* "She used the quote from Shakespeare's Hamlet, 'To be or not to be,' to begin her speech."
4. To emphasize the source of the quote:
* "The author used a quote from a famous philosopher to support his argument."
Remember that the best way to use "use" in a sentence to introduce a quote depends on the context and what you want to emphasize.