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Douglas Harper's Etymology Dictionary
solvitur ambulando

an appeal to practical experience for a solution or proof, Latin, literally "(the problem) is solved by walking," originally in reference to the proof by Diogenes the Cynic of the possibility of motion.

Wikipedia
Solvitur ambulando

Solvitur ambulando is a Latin term which means:

  • It is solved by walking
  • The problem is solved by a practical experiment

Diogenes of Sinope, also known as "Diogenes the Cynic", is said to have replied to Zeno's paradoxes on the unreality of motion by standing up and walking away.