Can you think what it is?
It's not necessary for the other sort." "The man must be good," said Willie.

"I suppose that's it." "That doesn't make the difference exactly," returned Mr Shepherd.

"It is as necessary for a doctor to be good as for a parson." "Yes," said Willie; "but though the doctor were a bad man, his medicines might be good." "Not by any means so likely to be!" said the parson.

"You can never be sure that anything a bad man has to do with will be good.

It may be, because no man is all bad; but you can't be sure of it.