People are always disturbing him," answered Pierre, trying to remember who this young man was.
Boris felt that Pierre did not recognize him but did not consider it necessary to introduce himself, and without experiencing the least embarrassment looked Pierre straight in the face.
"Count Rostov asks you to come to dinner today," said he, after a considerable pause which made Pierre feel uncomfortable.
"Ah, Count Rostov!" exclaimed Pierre joyfully.

"Then you are his son, Ilya?
Only fancy, I didn't know you at first.

Do you remember how we went to the Sparrow Hills with Madame Jacquot ?...

It's such an age..." "You are mistaken," said Boris deliberately, with a bold and slightly sarcastic smile.

"I am Boris, son of Princess Anna Mikhaylovna Drubetskaya.