Source: cirosantilli/those-who-can-t-do-teach

= Those who can't do, teach

* https://medium.com/@strontiumz38/the-those-who-cant-do-teach-fallacy-8116b0e12de5
* https://www.quora.com/Is-there-any-truth-to-the-phrase-Those-who-cant-do-teach-If-not-where-did-it-come-from-Do-people-still-believe-in-this-or-are-there-examples-in-common-thought-that-go-against-this-idea