Chief Seattle didn't say that, Ted Perry, an Austin, Texas screenwriter and professor of English at UT wrote it for a film, and he based this speech on an account written by a Victorian fellow (who never attended the original talk) 40 years or so after Seattle spoke.

I have security lights around my house. They're on motion detectors, and they only go on if someone approaches the house. For me, it is the best of both worlds, light when it is needed, and off when it isn't.

SRS