"Man is a creature adapted for life under circumstances which are very narrowly limited. A few degrees of temperature more or less, a slight variation in the composition of air, the precise suitability of food, makes all the difference between health and sickness; between life and death."
"The intrinsic brightness of theSun is fully 5,000 times as great as if the whole surface were formed of the molten steel just issuing from the Bessemer converter."
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Source: Sir Robert Stawell Ball (1893). “The Story of the Sun”
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