Answer:
Walk on the living, they don’t even mumble, Walk on the dead, they mutter and grumble. What are they?
Of no use to one, Bliss to two. Men lie for it. The baby’s right,
I can be moved. I can be rolled. But nothing will I hold. I'm red and I'm blue, and I can be other colors too. Having no head, though similar in shape. I have no eyes - yet move all over the place.
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
Describes universities like Harvard and can be poisonous.
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?