I know why moths fly toward light...

You see, back in the age of the mighty civilization of the dinosaurs, they had begun experimenting with genetic engineering.  One of their earlier attempts was to introduce glow-in-the-dark leaves on trees.  This provided illumination at night, and was quite picturesque.  These trees survived the dinosaurs that created them; but not by much.  The moths quickly evolved to recognize that light meant food, and ultimately they ravaged and completely destroyed all of the light-trees.  All that remains of that glorious time is the odd habit of moths to fly toward the light.