経けい験けん者しゃは語かたる

expression

take it from me; I speak from experience; word to the wise

A set phrase used to preface advice or a warning based on one's own past experience. Often used when the speaker wants to emphasize that they know what they are talking about because they have been through it themselves.

• 経けい験けん者しゃは語かたる、準じゅん備びは早はやめにしておいたほうがいいよ。

  Take it from me, you'd better prepare early.

• 経けい験けん者しゃは語かたるけど、あの店みせはやめておいたほうがいい。

  I speak from experience, you should avoid that shop.