Andrew Dalby, Language In Danger: The Loss Of Linguistic Diversity And The Threat To Our Future Quotes
On the basis of this information, it would be possible to argue that if everybody spoke English (or Chinese or Esperanto for that matter) everybody would be at war even more often.
Teachers were powerful enough to kill the indigenous languages: they are not powerful enough to bring them back to life.
It happens all too often - people regret that their language and culture are being lost but at the same time decide not to saddle their own children with the chore of preserving them.