Q. Can a quote be put in a conclusion?
To decide whether a quote will work well in your conclusion, consider these questions:
Is the quote further evidence for your argument?
If so, then it might belong in the body of your paper.
Is it an interesting and attention grabbing quote that you plan to use more for style than for evidence?
Perhaps it would be better suited to your introduction rather than your conclusion.
There is not a clear cut Yes or No answer, however, two online example APA papers do not show a quote in the conclusion:
Thank you for using ASK US. Please contact the Campus Library/ARC if you have additional questions.