Lewis Carroll Quote

"She can't do sums a bit!" the Queens said together, with great emphasis. "Can you do sums?" Alice said, turning suddenly on the White Queen, for she didn't like being found fault with so much. The Queen gasped and shut her eyes. "I can do Addition, if you give me time-but I can do Subtraction, under any circumstances!"

Through the Looking-glass: And what Alice Found There (ed. Macmillan Children's Books, 1872)