A proverb meaning that someone who knows many skills may be mediocre at all of them (a jack of all trades, master of none).
彼は絵も歌も料理もできるが、どれも趣味の域を出ない。多芸は無芸と言えるかもしれない。
He can paint, sing, and cook, but none of those go beyond hobbies. You might say a jack of all trades is a master of none.
仕事では一つの分野を深く極める方が評価されることもある。多芸は無芸という考え方も一理ある。
In work, sometimes specializing deeply in one area is more valued. There's some truth to 'jack of all trades, master of none.'
趣味としては楽しいが、職業にするなら注意が必要だ。多芸は無芸にならないように努力する必要がある。
As a hobby it's fun, but if you make it a profession you should be careful. You need to work so you don't become a jack of all trades and master of none.