expression
a good workman does not blame his tools
Proverb meaning that a skilled person can produce good results regardless of the quality of their tools. Often used to encourage focusing on skill rather than equipment.
弘法筆を選ばずというから、道具にこだわるより練習が大事だ。
As the proverb says, a good workman does not blame his tools, so practice is more important than fussing over equipment.
Attributed to the famous calligrapher Kūkai (弘法大師), who was said to be able to write beautifully with any brush. The exact historical origin is uncertain, but the phrase has been used as a proverb since at least the Edo period.