2.
There is a famous Russian cartoon in which a hippopotamus, in the bush, points out a zebra to another hippopotamus: 'You see,' he says, 'now that’s formalism.
Alain Robbe-Grillet
3.
I have seen the hippopotamus, both asleep and awake; and I can assure you that, awake or asleep, he is the ugliest of the works of God.
Thomas B. Macaulay