"But have I not tried, and tried, father?"
"Yes; but you must try once more."
"And so I have, father."
"Well, try again, and again; never say you cannot learn a lesson."
"But then I cannot remember it after I have learned it, my memory is so bad," urged the lad.
"If I were to promise you a holiday on the thirtieth of the month after the next, do you think that you would forget it?"
"No, I am pretty sure that I should not."
"And why, George?"
"I can't exactly tell the reason; but I know I should remember it."