I know that I can pitch ball.
You know it, too.

I can twirl a ball just as good as Frank Merriwell, or any other fellow in Yale, and you know that, too.

I reckon I'm able to ride my bronco alone, without Merriwell's help.

I am not asking favors--none whatever! I'm simply returning a favor already given! You can see through that, can't you?
If you can't, you're as chuckle-headed as a prairie-dog!" "I can see that you are becoming Frank Merriwell's friend just as fast as you can!" "You're riding away off the line, Pike! I shall never be Merry's friend in the sense you think.

But you know that he is the clean white article.
He is straight goods.