Something you are not doing now, will not be done forever Taiwan film"Practice rhetoric" ,describes a big boy who will graduate from university soon, rides the bicycle alone, taking 7 days to circle the Taiwan island.This big boy with a listening incapability, takes his old guitar,see all the beatiful scenes, also see many kinds of people on the road.He said " something you are not doing now, will not be done forever", this sentence triggered a lot of resonance from many people.