The bigger the issue, the smaller you write. Remember that. You don't write about the horrors of war. You write about a kid's burnt socks lying on the road. You pick the smallest manageable part of the big thing, and you work off the resonance.
I don't agree with or like this quote, actually, but am just pinning to bookmark it. In general I think we should be more critical with what inspirational quotes we share. Some of the popular ones are very contrary to my values.