Ravenclaws prize wit, learning, and wisdom. It's an ethos etched into founder Rowena Ravenclaw diadem: 'wit beyond measure is man's greatest treasure'
The Owlery door opened behind him. He leapt in shock and, turning quickly, saw Cho Chang holding a letter and a parcel in her hands...
Harry Potter and the Order Of The Phoenix
by J.K. Rowling