[isitmadeofglass]

> The entire concept is "jack of all trades, master of none" is

The quote is “a jack of all trades is a master of none, but oftentimes better than a master of one.”

[teddyh]

No it isn’t.

Wikipedia says “there are no known instances of this second line dated to before the twenty-first century”:

https://en.wikipedia.org/w/index.php?title=Jack_of_all_trade...