He laughed even audibly once or twice, as he vainly endeavoured to persuade himself that he was able to regard the world and all that belonged to it as a bubble.
There came to him a moment in which he laughed out very audibly. "Ha! ha!" he shouted, rising up from his chair, and he walked about the room, holding a large paper-knife in his hand. 
He even jumped up and laughed audibly, as he tried to persuade himself that he regarded the world and all that belonged to it as a bubble.
