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Actaully, that's a rounding error. One apple will keep 22 doctors away for one hour, so an apple a day keeps 0.9167 doctors away.
The speed of light is invariant regardless of the motion of the observer relative to the light source.
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Light a man a fire, and he will be warm while it burns.
Set a man on fire, and he will be warm for the rest of his life.
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