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Useful Things, though Mechanical, are justly preferable to useless Speculations in Geometry, as we learn from Pappus.

— Isaac Newton Arithmetica Universalis (1707)

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More quotes by Isaac Newton

Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.

Plato is my friend — Aristotle is my friend — but my greatest friend is truth.

God created everything by number, weight and measure.

Symmetry in Plants (1998)

I have studied these things — you have not.

To explain all nature is too difficult a task for any one man or even for any one age...

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