"All languages should survive! Out of 6000 or 7000 languages in the world, some 2000 have been lost in recent years and it has been estimated that in the next 20 years, another 2000 will be lost. When a dialect is lost it is human spiritual wealth that loses and history, our history as human beings, the history of how we evolved from animals into humans. Sometimes, however, I think that there are many animals that have never known slavery, capitalism nor the exploitation of animals by animals, which often behave better than humans do".
References to the original: SPEECH TO REPRESENTATIVES OF BRAZIL’S NATIONAL STUDENTS UNION. BELO HORIZONTE, BRAZIL, JULY 1, 1999