Professor Li , do you know where to buy art supplies ?   For what ? Are you taking up painting ?   No . I can't paint . I'm asking for my niece . She is really into it .   Oh , good . How old is your niece ?   She is eight . Actually , I'm buying a good set of art supplies for her as a birthday gift .   It's a wise thing to do . Art will do a child a world of good . 