Mr. Lorry is overcome with grief. What is his reaction and what does Carton say to him? (From Book 3 Chapters 6-10)

From the text:

Mr. Lorry wept with grief and disappointment.

Mr. Lorry's eyes gradually sought the fire; his sympathy with his darling, and the heavy disappointment of his second arrest, gradually weakened them; he was an old man now, overborne with anxiety of late, and his tears fell.

Carton answered;

"You are a good man and a true friend," said Carton, in an altered voice. "Forgive me if I notice that you are affected. I could not see my father weep, and sit by, careless. And I could not respect your sorrow more, if you were my father. You are free from that misfortune, however."

Though he said the last words, with a slip into his usual manner, there was a true feeling and respect both in his tone and in his touch, that Mr. Lorry, who had never seen the better side of him, was wholly unprepared for. He gave him his hand, and Carton gently pressed it.