Answer:
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. 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 comes in many different sizes but is always only 1 foot long?
I start with T end with T and within me is T.
I start with an E end with an E and have a letter in me.
What made Cyclops quit teaching?