Answer:
Describes universities like Harvard and can be poisonous.
It is sometimes known to have silver linings.
Creatures of power, creatures of grade, creatures of beauty, creatures of strength. As for their lives, they set everything's pace. For all things must come to live. Under their emerald embrace Either in their life or in their death.
What stays the same size no matter how much they weight?
What has four legs during the day; and six or eight during the night?
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?