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Famous Isaac Newton Quotes
“Therefore to the same natural effects we must, as far as possible, assign the same causes.”
Source: Newton's Principia: The Mathematical Principles of Natural Philosophy
Source: Isaac Newton: Philosophical Writings
Source: Isaac Newton: Philosophical Writings
“Hypotheses non fingo. I frame no hypotheses.”
Source: Opticks, Or, A Treatise of the Reflections, Refractions, Inflections & Colours of Light
Source: Correspondence: 1676-1687
