Inter-Stellar

"The fate of a world isn't determined by its best examples, but by its worst. It takes a few to destroy the many, especially when even the best of you can be dragged down into the mire. Judging from your example, brother against brother, friend against friend, you people have such a potential for violence, sheer and varnished wickedness, I've got every confidence you'll destroy yourself before you build your first inter-stellar engine. We've got nothing to fear from you."
--The Outer Limits,
The Preacher, "Heart's Desire"