You can quote or use your own words to describe the general idea. It is definitely inappropriate to copy the words of celebrities into the composition without transitional instructions. When writing the teacher's words into the composition, we should also pay attention to the method of square measurement. Improper use does not conform to the identity characteristics of the characters. In short, when writing a composition, you can quote or learn from famous sentences, but you should pay attention to inserting nature, quoting properly and integrating them, otherwise it will not only be suspected of plagiarism, but also appear blunt and unsmooth, which is not conducive to your center. I hope this passage can give you some inspiration.