sad, but what to do?

there is this boy
that seldom smiles
his eyes are tired and searching
his head seems heavy

he wears broken shoes
he smells offensively sometimes
his shirts are dirty
and he drivels

he is very good in natural science
he knows all the plants
he knows better then the prof
he takes too much work

he listens when i offer him to talk
he says that he knows that the others find him strange
he nods when asked if he is sad and in despair
he makes appointments with the doctor but he never turnes up