expression
words can lead to disaster; the tongue is the root of calamities
A proverb warning that careless speech can cause serious trouble. Often used as a caution against speaking too freely.
口は災いの元だから、言い過ぎには気をつけよう。
Words can lead to disaster, so let's be careful not to say too much.
彼は口は災いの元だとよく言っている。
He often says that the tongue is the root of calamities.
A traditional Japanese proverb. The exact origin is uncertain, but it reflects a common cultural caution against careless speech.