So many examples of this. This highly charming piece by a former IAS director goes into this so well: https://library.ias.edu/files/UsefulnessHarpers.pdf https:

So many examples of this. This highly charming piece by a former IAS director goes into this so well: https://library.ias.edu/files/UsefulnessHarpers.pdf https://library.ias.edu/files/UsefulnessHarpers.pdf