I ask my students this question the last three years. Each year it makes me frustrated, humbled (recognizing my own areas where I should improve) and hopeful.
I used this as a visual writing prompt. You can check out more of these prompts on the Visual Writing Prompts blog. Luke Neff and I have been working on that site. I would love suggestions for more visual writing prompts. If you have a visual, a question, etc. please let me know at @johntspencer on Twitter or at firstname.lastname@example.org.