A very conscious reading and a thoughtful writing has the most relevance in an essay. The following definitions are from the MLA Handbook for Writers of Research Papers , Fifth Edition, 1999. To use another person's ideas or expression in your writing without acknowledging the source is to plagiarize. Plagiarism, then, constitutes intellectual theft. Forms of plagiarism include the failure to give appropriate acknowledgment when repeating another's wording or particularly apt phrase, when paraphrasing another's argument, or when presenting another's line of thinking.
Quotations are effective in research papers when used selectively.
Overquotation can bore your readers and might lead them to conclude that you are neither an original thinker nor a skillful writer. The accuracy of quotations in research writing is extremely important. They must reproduce the original sources exactly. You must construct a clear, grammatically correct sentence that allows you to introduce or incorporate a quotation with complete accuracy. Alternatively, you may paraphrase the original and quote only fragments, which may be easier to integrate into the text.