Freeman John Dyson (1923 - 2020)

"Birds and Frogs" An essay by Dyson in Notices of American Mathematical Society. 

Birds, fly high in the air and survey broad vistas, frogs see the flowers that grow nearby.

 https://www.ams.org/notices/200902/rtx090200212p.pdf

 

Remembering Freeman Dyson: Scientific American Blogs.

https://blogs.scientificamerican.com/observations/remembering-freeman-dyson/