Great ideas, here! Like Ned said, it is great to look at some other things that have been written about ambition. And Sean mentioned Shakespeare...
Friends, Romans, countrymen, listen up for a minute! I came here to bury Caesar, now that Brutis stabbed him in the back; I didn't come here to praise him, so you don't have to worry that I'll be trying to convince you of his virtue or anything like that... but I do want to point something out: People have been saying Caesar was
ambitious, but do you remember when the crown was first offered to him? Three times we offered him the crown, and three times he refused it! Does that seem like someone who is ambitious?
In my above paraphrasing of Shakespeare, ambition is seen as a bad thing -- the kind of ambition that makes you compromise your principles, perhaps. Similarly, in Chinese philosophy, it is said that you can "do nothing, and nothing will be left undone."
Welcome to EssayForum! I hope you get a lot of good ideas here. Please take some time to read other people's essays and give any advice you have to offer.
In your essay, try writing a few paragraphs based on your own ideas -- is ambition helpful to society? Helpful to the ambitious person? Helpful to one but not the other? After writing a few paragraphs, you'll know what your main idea is, so you can go back to the top of the essay and add an intro paragraph.
Kevin, EssayForum.com