Science, in its ultimate ideal, consists of a set of...

Science, in its ultimate ideal, consists of a set of propositions arranged in a hierarchy, the lowest level of the hierarchy being concerned with particular facts, and the highest with some general law, governing everything in the universe. The various levels in the hierarchy have a two-fold logical connection, travelling one up, one down; the upward connection proceeds by induction, the downward by deduction.

Bertrand Russell Quote About Law, Two, Connections: Science In Its Ultimate Ideal...

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