Answer:
I cannot be bought, cannot be sold, even if I'm sometimes made of gold. What am I?
What jumps when it walks, but sits when it stands?
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.
Marking mortal privation when firmly in place. An enduring summation inscribed in my face.
I always have to work with something in my eye.
What made Cyclops quit teaching?