What Defines who you are?!

I saw a film today and it contained the following line (or words to the effect)

"You are what you defend, what you stand up for. That's what defines who you are"

So.... if you can identify the things that you defend and stick up for then it is those things that define your character. It's a simple concept but seems quite spot-on actually don't you think?

I'll leave it there :)
Mark