Really you are very dull!

`Once,' said the Mock Turtle at last, with a deep sigh, `I was a real Turtle.'

These words were followed by a very long silence, broken only by an occasional exclamation of `Hjckrrh!' from the Gryphon, and the constant heavy sobbing of the Mock Turtle. Alice was very nearly getting up and saying, `Thank you, sir, for your interesting story,' but she could not help thinking there must be more to come, so she sat still and said nothing.

`When we were little,' the Mock Turtle went on at last, more calmly, though still sobbing a little now and then, `we went to school in the sea. The master was an old Turtle – we used to call him Tortoise –'

`Why did you call him Tortoise, if he wasn't one?' Alice asked.

`We called him Tortoise because he taught us,' said the Mock Turtle angrily: `really you are very dull!'