A man--Buck--wrote a vindication in the seventeenth-century, and Horace Walpole...

A man--Buck--wrote a vindication in the seventeenth-century, and Horace Walpole in the eighteenth, and someone named Markham in the nineteenth ... "
"And who in the twentieth?"
"No one that I know of."
"Then what's wrong with your doing it?"
"But it wont' be the same, don't you see? It won't be a great discovery."
He said it in capitals. A GREAT DISCOVERY.
Grant smiled at him.
"Oh, come, you can't expect to pick GREAT DISCOVERIES off bushes. If you can't be a pioneer what's wrong with leading a crusade?"
"A crusade?
"Certainly."
"Against what?"
"Tonypandy.