The grand design of nature perceived broadly in four dimensions, including the forces that move the universe and created man, with special focus on evolution in our own biosphere, is something intrinsically good that it is right to preserve and enhance, and wrong to destroy and degrade.

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Quote text and notes from Wikiquote: Roger Wolcott Sperry (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.