Simplify the following text for a Grade 8 native English-speaking person.
Original: All text that you did not write yourself , except brief excerpts , must be available under terms consistent with Wikipedia 's Terms of Use before you submit it .
Simplified: If you do not want your writing to be changed and shared then do not submit it here . If you did not write this yourself , it must be available under terms consistent with the Terms of Use , and you agree to follow any relevant licensing requirements .