Answer:
I move without wings Between silken string I leave as you find My substance behind.
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down, but should not be forgotten. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house.
I'm an animal. I love marching. I always wear a tuxedo. What am I?
I flow from the Homerβs mouth when he sees doughnuts.