She calmly prepared everything for her to begin playing; his parents, who had never rented a room out before and therefore showed an exaggerated courtesy towards the three gentlemen, did not even dare to sit on their own chairs; his father leant against the door with his right hand pushed in between two buttons on his uniform coat; his mother, though, was offered a seat by one of the gentlemen and sat — leaving the chair where the gentleman happened to have placed it — out of the way…
There are no more uses of "therefore" in the book.
Show samples from other sources
Kim is taller than Ashley. Ashley is taller than Anna. Therefore, Kim is taller than Anna.
It has not been approved for use in this country. Therefore, you cannot buy it here.