On Wednesday, July 5, 2017 at 1:22:48 AM UTC-6, Gerald Kelleher wrote:

Equating planetary motion with the fall of an apple may have appeared
fashionable in the late 17th century but unsuitable for 21st century
observational data which requires astronomers to interpret and not mathematical
theorists or experimentalists.

And the world is like an apple
Whirling silently in space

https://www.youtube.com/watch?v=qKV9bK-CBXo

John Savard