Assertion: newton's conclusion | /r/HasProperty | mere hypothesis
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Source sentences:
text: Thirdly and finally, in his earliest optical work Newton began to formulate a distinction that would remain salient throughout his long intellectual career, contending that a philosopher must distinguish between a conclusion or claim about some feature of nature that is derived from experimental or observational evidence, and a conclusion or claim that is a mere “hypothesis”, a kind of speculation about nature that is not, or not yet anyway, so derived.