凝こっては思し案あんに能あたわず

expression

too much thinking gets you nowhere; excessive enthusiasm clouds one's judgment

Proverb warning that overthinking or obsessing over something leads to poor decisions or inaction.

• 凝こっては思し案あんに能あたわずというから、少すこし頭あたまを冷ひやしたほうがいい。

  They say too much thinking gets you nowhere, so you should cool your head a bit.