Hi @techwekquotes! For most of the Pinterest marketers and creators I support, posting quotes gets them some saves - but it's not really connected directly to website clicks or sales.
My best suggestion is to use them to get saves, but know that most people who use them AND make money have a strategy for monetizing something else, too. (For example, they sell products or services. Or they create paid UGC [user generated content] for brands.)