The right to vote and trial by jury “are the heart and lungs, the mainspring and the centre wheel….In these two powers consist wholly the liberty and security of the people.”

– John Adams, Boston Gazette (January 27, 1766)

It’s a jolt to see biology and technology put together this way by one of the Founding Fathers, but Adams may well have viewed the ticking of a heart and the ticking of a clock as two sides of the same coin. Physician William Harvey described the heart as a mechanical pump in 1628, dispelling earlier views of that organ as a magic bag of courage.

In a clock, the center wheel acts as a regulator, metering energy out to the gears in small, steady pushes. Similarly, the heart pushes units of energy (red blood cells, laden with oxygen) through the human body.

In a democracy, voting delivers life-sustaining energy throughout the body politic.

Painting: Portrait of John Adams by Gilbert Stuart via Library of Congress

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