"I don't understand it, I don't understand it," he said.

"What don't you understand?" said Oblonsky, smiling as brightly as ever, and picking up a cigarette.

He expected some queer outburst from Levin.

"I don't understand what you are doing," said Levin, shrugging his shoulders.

" How can you do it seriously?" "Why not?" "Why, because there's nothing in it.