. . . My favourite definition of wonder comes from the 18th-century Scottish moral philosopher Adam Smith, better known for first articulating the tenets of capitalism. He wrote that wonder arises ‘when something quite new and singular is presented… [and] memory cannot, from all its stores, cast up any image that nearly resembles this strange appearance’. Smith associated this quality of experience with a distinctive bodily feeling — ‘that staring, and sometimes that rolling of the eyes, that suspension of the breath, and that swelling of the heart’.

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For a less flattering view, we turn to the 17th-century English philosopher Francis Bacon, the father of the scientific method. He called wonder ‘broken knowledge’ — a mystified incomprehension that science alone could cure. But this mischaracterises science and wonder alike. Scientists are spurred on by wonder, and they also produce wondrous theories. The paradoxes of quantum theory, the efficiency of the genome: these are spectacular. Knowledge does not abolish wonder; indeed, scientific discoveries are often more wondrous than the mysteries they unravel. Without science, we are stuck with the drab world of appearances. With it, we discover endless depths, more astounding that we could have imagined.

--Jesse Prinz.