商いは牛のよだれ
Meanings
1
one should not rush to make a profit; business is best run when sales flow like a cow's drool
Proverb advising patience in business; profit should come slowly and steadily, like a cow's drool, rather than through hasty or greedy actions.
As the saying goes, 'Business is like a cow's drool,' meaning it's important to keep at it patiently for the long haul without rushing.