I have to write a high school essay where the prompt is roughly centered around writing about someone who is courageous. With my interest in philosophy I would like to write my paper on a philosopher, a courageous one. Unfortunately, courageous in the sense which is allowed refers to one who is brave when performing a daunting task, otherwise I could write an essay on courage alone. So I have though about writing it on Socrates and his well known execution, any other suggestions? I have also read a brief amount concerning Anthony Ludovici's stance on Socrates' death, any comments as to its credibility?
TLDR: What philosopher can I write about for a high school essay in which I have to write about a person of courage?