Professor Snape found his half
"He can play Quidditch, and he plays it very well. He is from Gryffindor, but he is not arrogant. He is a potions master. We work together perfectly. He knows me very well. We are very compatible. He likes me very much, just as I like him." This text was written in Snape's most important potion clippings, which were later collected in the museum. The introduction said, from a brave hero Severus
Motto: Professor Snape deserves the best