Food vs. Activity? What should you focus more on?

I had a friend ask me a couple weeks ago, what my opinion was when it came to nutrition vs. activity. He felt that focusing approximatley 70% of your time on proper eating habits was most important and shows more results vs. the other 30% of the time on activity.
As a rule, I tell my clients it's 50%-50%. You need both! I absolutely agree that in order to see the greatest results, nutrition plays a huge role; but so does activity. They both complement each other extremely well.
However, if you're just starting out and creating a healthier, more active lifestyle for yourself be sure to take it one step at a time. First focus on one aspect, then the other. Don't try to develop a habit for both nutrition and activity right away - often that's too much too soon. Think of the tortoise and the hare - slow and steady wins the race.