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The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.

— Isaac Newton Philosophiae Naturalis Principia Mathematica (1687)

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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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