Sergey Ivanovitch fancied, as he approached him, that Vronsky saw him but was pretending not to see.

This did not affect Sergey Ivanovitch in the slightest.

He was above all personal considerations with Vronsky.

At that moment Sergey Ivanovitch looked upon Vronsky as a man taking an important part in a great cause, and Koznishev thought it his duty to encourage him and express his approval.