The Sorting Hat

There lived four wizards of renown
Whose names are still well known.
They shared a wish, a hope, a dream
They hatched a daring plan
To educate young sorcerers
Thus Hogwarts School began
While still alive they did divide
Their favourites from the throng
Yet how to pick the worthy ones
When they were dead and gone?
The founders put some brains in me
So i could choose instead!
I'll have a look inside your mind
And tell you where you belong!