Against a perfect moment, the centuries beat in vain.
Terry Pratchett, from Thief of Time

This morning, as I was driving the Red-Headed Menace and Railfan to school, we were all singing along to Billy Joel's "You May Be Right."  The clouds were beginning to clear, and there was a rainbow stretching in a full arc across the sky, with the hint of a twin underneath.

A perfect moment.