“It is a common misconception, thought Harry, that all the best rationalists
are Sorted into Ravenclaw, leaving none for other Houses. This is not so; being
Sorted into Ravenclaw indicates that your strongest virtue is curiosity, wondering and desiring to know the true answer. And this is not the only virtue a rationalist needs. Sometimes you have to work hard on a problem, and stick to it for a while. Sometimes you need a clever plan for finding out. And sometimes what you need
more than anything else to see an answer, is the courage to face it…”