I'm pretty sure I haven't posted this before, but if I have, lmk.

Everything Snape wrote in his potions textbook, he stole from Lily. Slughorn himself said that not even Snape had made a perfect Draught of Living Death on the first try. While he never says anything about Lily, he talks more about her skill in potion-making than Snape's. Snape's a lying, cheating, slimy little shit.