As the Union Pacific railroad bridge across Ladybird Lake says, "Life Is Change. Be Flexible." Rarely have truer words been graffitied. This, from the bridge that also teaches us to "Focus One Point And Breathe." Easily two of my top five life lessons come from the enlightened graffiti crew responsible. Their third admonition towards the north end of the bridge, "Let's Pretend We Are Robots," is indeed helpful but doesn't rank quite as high as the others.