A four-character idiom meaning 'throughout all time and places'; refers to all ages and regions without restriction.
古今東西、人々は幸福を求めて様々な工夫をしてきた。
Throughout all ages and places, people have devised various means to seek happiness.
古今東西の名作を集めた展覧会が開かれる。
An exhibition collecting masterpieces from all times and places is being held.
この問題は古今東西、どの社会でも見られる課題だ。
This issue is a challenge seen in societies across all times and places.