Writing Feedback /
"People just keep changing"; What motivates people to change? For SAT [5]
When you write your essay, you'd do yourself a big favor and save some time by not writing so ornately. The CollegeBoard people don't want purple prose.
You really don't have a thesis statement - at least, if you do, it's buried and very subtle. "Ethos and nomes of morality?" What are "nomes," and what does morality have to do with the prompt? Call me a country bumpkin, but I just don't get it.
The second paragraph - sadly, I haven't read Robinson Crusoe (*dodges random flying objects*) so I was a bit baffled. You should assume that the graders haven't read it either, because if they haven't, they won't get anything out of your example unless you take care to explain the situation. Also, echoing the other person that replied, you need to introduce Robinson ("in Daniel Defoe's 'Robinson Crusoe,'...).
The third paragraph is just kind of confusing, and I really had no idea what you were trying to say. Bruno? Helio-centric theory? I hate it when people say things like this, but throughout the whole thing it sort of seemed like you were trying to substitute substantial content with impressive vocabulary. It reads almost like stream of consciousness. o_O
You don't have a well-defined conclusion. I would suggest starting a new paragraph and elaborating on that last sentence just to solidify your thesis, which isn't clear to begin with.
After the grader reads this essay, he/she should be able to concisely sum up what your point of view was and what examples you used to support it, and I really can't. I don't doubt that you have good ideas, you just need to learn how to structure them into a coherent, cohesive composition. Even if your examples aren't the best (and who can criticize you if they aren't? You only get 25 measly minutes to write the whole thing), the graders will appreciate that you've taken care to organize them in a logical manner. Good luck - get that 12.