This is one of my all-time favorites:
"Don't tell me the moon is shining; show me the glint of light on broken glass." —Anton Chekhov
Showing is more difficult to do then telling, but it is much more powerful. And while there is such a thing as too much showing and not enough telling, every writer should work hard to show the glint of light on broken glass to bring the reader into the scene.
It's all better with friends.