The feeling of a challenging small school environment in one of the largest campuses in the world; and the opportunity to study whatever interests me, even if I am still exploring what I want to bemy interests . This is why I am considering The Ohio State University.
The first sentence is a big, long phrase. You should combine this with the following sentence like:
"Ohio State University offers the feeling of a challenging small school environment and the opportunity the opportunity to study my interests."
The following statements on diversity feels out of place. You start off talking about the challenging environment and the opportunities and all of a sudden talk about diversity...
Overall, I think it is okay. However, I think you should focus more on what you plan on becoming or doing at OSU. How do you plan on using OSU's resources to achieve your dream of becoming an Aerospace Engineer?
Also, I feel that you began to drift focus away from the quote as you progressed through the essay. I'm not sure if that's ok. In my opinion, you should keep the quote alive and fresh and part of your main thesis in the short answer.