口くちでは大おお阪さかの城しろも建たつ

expression, godan verb (-tsu)

talk is cheap; easier said than done

Proverb meaning that words alone can accomplish nothing; building something as grand as Osaka Castle requires action, not just talk. Often used to criticize empty boasting or unrealistic plans.

• 口くちでは大おお坂さかの城しろも建たつというが、計けい画かくばかりで何なにも進すすんでいない。

  They say talk is cheap, but with all this planning nothing is actually getting done.

• 彼かれはいつも大おおきなことを言いうが、口くちでは大おお坂さかの城しろも建たつということを忘わすれているようだ。

  He always talks big, but he seems to forget that talk is cheap.