I'll look after him.

He's discovered 'equality '!" "He is in a fever; he is raving; something very queer has happened to him," thought Stavrogin, looking at him once more.

Both walked on without stopping.
"He's written a good thing in that manuscript," Verhovensky went on.

"He suggests a system of spying.

Every member of the society spies on the others, and it's his duty to inform against them.