てこそ

Usage

Used to express the fact that "if all requirements are met, then one can do something for the first time"

V ~~ます~~ + こそ

親になってこそ、親の苦労や気持ちがわかるものだ Only after you become a parent can you understand the struggles and feelings of raising childre

生活費を自分で稼いでこそ、自立していると言えます Only after you start earning a living for yourself can you claim to be independent